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Message-ID: <20170421074948.GB32294@kroah.com>
Date: Fri, 21 Apr 2017 09:49:48 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, Jiri Slaby <jslaby@...e.cz>
Subject: Re: Linux 4.4.63
diff --git a/Makefile b/Makefile
index 0309acc34472..ec52973043f6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 4
-SUBLEVEL = 62
+SUBLEVEL = 63
EXTRAVERSION =
NAME = Blurry Fish Butt
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d5cfa937d622..8b0424abc84c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1413,7 +1413,7 @@ config CPU_MIPS32_R6
select CPU_SUPPORTS_MSA
select GENERIC_CSUM
select HAVE_KVM
- select MIPS_O32_FP64_SUPPORT if 32BIT
+ select MIPS_O32_FP64_SUPPORT
help
Choose this option to build a kernel for release 6 or later of the
MIPS32 architecture. New MIPS processors, starting with the Warrior
@@ -1464,7 +1464,7 @@ config CPU_MIPS64_R6
select CPU_SUPPORTS_HIGHMEM
select CPU_SUPPORTS_MSA
select GENERIC_CSUM
- select MIPS_O32_FP64_SUPPORT if MIPS32_O32
+ select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
help
Choose this option to build a kernel for release 6 or later of the
MIPS64 architecture. New MIPS processors, starting with the Warrior
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 51cdc46a87e2..2e7f60c9fc5d 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -269,11 +269,6 @@ static void ltq_hw5_irqdispatch(void)
DEFINE_HWx_IRQDISPATCH(5)
#endif
-static void ltq_hw_irq_handler(struct irq_desc *desc)
-{
- ltq_hw_irqdispatch(irq_desc_get_irq(desc) - 2);
-}
-
#ifdef CONFIG_MIPS_MT_SMP
void __init arch_init_ipiirq(int irq, struct irqaction *action)
{
@@ -318,19 +313,23 @@ static struct irqaction irq_call = {
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
- int irq;
-
- if (!pending) {
- spurious_interrupt();
- return;
+ unsigned int i;
+
+ if ((MIPS_CPU_TIMER_IRQ == 7) && (pending & CAUSEF_IP7)) {
+ do_IRQ(MIPS_CPU_TIMER_IRQ);
+ goto out;
+ } else {
+ for (i = 0; i < MAX_IM; i++) {
+ if (pending & (CAUSEF_IP2 << i)) {
+ ltq_hw_irqdispatch(i);
+ goto out;
+ }
+ }
}
+ pr_alert("Spurious IRQ: CAUSE=0x%08x\n", read_c0_status());
- pending >>= CAUSEB_IP;
- while (pending) {
- irq = fls(pending) - 1;
- do_IRQ(MIPS_CPU_IRQ_BASE + irq);
- pending &= ~BIT(irq);
- }
+out:
+ return;
}
static int icu_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
@@ -355,6 +354,11 @@ static const struct irq_domain_ops irq_domain_ops = {
.map = icu_map,
};
+static struct irqaction cascade = {
+ .handler = no_action,
+ .name = "cascade",
+};
+
int __init icu_of_init(struct device_node *node, struct device_node *parent)
{
struct device_node *eiu_node;
@@ -386,7 +390,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
mips_cpu_irq_init();
for (i = 0; i < MAX_IM; i++)
- irq_set_chained_handler(i + 2, ltq_hw_irq_handler);
+ setup_irq(i + 2, &cascade);
if (cpu_has_vint) {
pr_info("Setting up vectored interrupts\n");
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 5c03a6a9b054..a20823210ac0 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -220,6 +220,15 @@ static void cpu_ready_for_interrupts(void)
unsigned long lpcr = mfspr(SPRN_LPCR);
mtspr(SPRN_LPCR, lpcr | LPCR_AIL_3);
}
+
+ /*
+ * Fixup HFSCR:TM based on CPU features. The bit is set by our
+ * early asm init because at that point we haven't updated our
+ * CPU features from firmware and device-tree. Here we have,
+ * so let's do it.
+ */
+ if (cpu_has_feature(CPU_FTR_HVMODE) && !cpu_has_feature(CPU_FTR_TM_COMP))
+ mtspr(SPRN_HFSCR, mfspr(SPRN_HFSCR) & ~HFSCR_TM);
}
/*
diff --git a/arch/x86/entry/vdso/vdso32-setup.c b/arch/x86/entry/vdso/vdso32-setup.c
index 08a317a9ae4b..a7508d7e20b7 100644
--- a/arch/x86/entry/vdso/vdso32-setup.c
+++ b/arch/x86/entry/vdso/vdso32-setup.c
@@ -31,8 +31,10 @@ static int __init vdso32_setup(char *s)
{
vdso32_enabled = simple_strtoul(s, NULL, 0);
- if (vdso32_enabled > 1)
+ if (vdso32_enabled > 1) {
pr_warn("vdso32 values other than 0 and 1 are no longer allowed; vdso disabled\n");
+ vdso32_enabled = 0;
+ }
return 1;
}
@@ -63,13 +65,18 @@ subsys_initcall(sysenter_setup);
/* Register vsyscall32 into the ABI table */
#include <linux/sysctl.h>
+static const int zero;
+static const int one = 1;
+
static struct ctl_table abi_table2[] = {
{
.procname = "vsyscall32",
.data = &vdso32_enabled,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = (int *)&zero,
+ .extra2 = (int *)&one,
},
{}
};
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 1514753fd435..d262f985bbc8 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -278,7 +278,7 @@ struct task_struct;
#define ARCH_DLINFO_IA32 \
do { \
- if (vdso32_enabled) { \
+ if (VDSO_CURRENT_BASE) { \
NEW_AUX_ENT(AT_SYSINFO, VDSO_ENTRY); \
NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_CURRENT_BASE); \
} \
diff --git a/arch/x86/kernel/cpu/perf_event_intel_lbr.c b/arch/x86/kernel/cpu/perf_event_intel_lbr.c
index 659f01e165d5..8900400230c6 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_lbr.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_lbr.c
@@ -410,6 +410,9 @@ static void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc)
cpuc->lbr_entries[i].to = msr_lastbranch.to;
cpuc->lbr_entries[i].mispred = 0;
cpuc->lbr_entries[i].predicted = 0;
+ cpuc->lbr_entries[i].in_tx = 0;
+ cpuc->lbr_entries[i].abort = 0;
+ cpuc->lbr_entries[i].cycles = 0;
cpuc->lbr_entries[i].reserved = 0;
}
cpuc->lbr_stack.nr = i;
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 3a7ae80dc49d..0a472e9865c5 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6678,14 +6678,20 @@ static int nested_vmx_check_vmptr(struct kvm_vcpu *vcpu, int exit_reason,
}
page = nested_get_page(vcpu, vmptr);
- if (page == NULL ||
- *(u32 *)kmap(page) != VMCS12_REVISION) {
+ if (page == NULL) {
nested_vmx_failInvalid(vcpu);
+ skip_emulated_instruction(vcpu);
+ return 1;
+ }
+ if (*(u32 *)kmap(page) != VMCS12_REVISION) {
kunmap(page);
+ nested_release_page_clean(page);
+ nested_vmx_failInvalid(vcpu);
skip_emulated_instruction(vcpu);
return 1;
}
kunmap(page);
+ nested_release_page_clean(page);
vmx->nested.vmxon_ptr = vmptr;
break;
case EXIT_REASON_VMCLEAR:
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 493f54172b4a..3aebbd6c6f5f 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -628,21 +628,40 @@ void __init init_mem_mapping(void)
* devmem_is_allowed() checks to see if /dev/mem access to a certain address
* is valid. The argument is a physical page number.
*
- *
- * On x86, access has to be given to the first megabyte of ram because that area
- * contains BIOS code and data regions used by X and dosemu and similar apps.
- * Access has to be given to non-kernel-ram areas as well, these contain the PCI
- * mmio resources as well as potential bios/acpi data regions.
+ * On x86, access has to be given to the first megabyte of RAM because that
+ * area traditionally contains BIOS code and data regions used by X, dosemu,
+ * and similar apps. Since they map the entire memory range, the whole range
+ * must be allowed (for mapping), but any areas that would otherwise be
+ * disallowed are flagged as being "zero filled" instead of rejected.
+ * Access has to be given to non-kernel-ram areas as well, these contain the
+ * PCI mmio resources as well as potential bios/acpi data regions.
*/
int devmem_is_allowed(unsigned long pagenr)
{
- if (pagenr < 256)
- return 1;
- if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
+ if (page_is_ram(pagenr)) {
+ /*
+ * For disallowed memory regions in the low 1MB range,
+ * request that the page be shown as all zeros.
+ */
+ if (pagenr < 256)
+ return 2;
+
+ return 0;
+ }
+
+ /*
+ * This must follow RAM test, since System RAM is considered a
+ * restricted resource under CONFIG_STRICT_IOMEM.
+ */
+ if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) {
+ /* Low 1MB bypasses iomem restrictions. */
+ if (pagenr < 256)
+ return 1;
+
return 0;
- if (!page_is_ram(pagenr))
- return 1;
- return 0;
+ }
+
+ return 1;
}
void free_init_pages(char *what, unsigned long begin, unsigned long end)
diff --git a/crypto/ahash.c b/crypto/ahash.c
index dac1c24e9c3e..f9caf0f74199 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -31,6 +31,7 @@ struct ahash_request_priv {
crypto_completion_t complete;
void *data;
u8 *result;
+ u32 flags;
void *ubuf[] CRYPTO_MINALIGN_ATTR;
};
@@ -270,6 +271,8 @@ static int ahash_save_req(struct ahash_request *req, crypto_completion_t cplt)
priv->result = req->result;
priv->complete = req->base.complete;
priv->data = req->base.data;
+ priv->flags = req->base.flags;
+
/*
* WARNING: We do not backup req->priv here! The req->priv
* is for internal use of the Crypto API and the
@@ -284,38 +287,44 @@ static int ahash_save_req(struct ahash_request *req, crypto_completion_t cplt)
return 0;
}
-static void ahash_restore_req(struct ahash_request *req)
+static void ahash_restore_req(struct ahash_request *req, int err)
{
struct ahash_request_priv *priv = req->priv;
+ if (!err)
+ memcpy(priv->result, req->result,
+ crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
+
/* Restore the original crypto request. */
req->result = priv->result;
- req->base.complete = priv->complete;
- req->base.data = priv->data;
+
+ ahash_request_set_callback(req, priv->flags,
+ priv->complete, priv->data);
req->priv = NULL;
/* Free the req->priv.priv from the ADJUSTED request. */
kzfree(priv);
}
-static void ahash_op_unaligned_finish(struct ahash_request *req, int err)
+static void ahash_notify_einprogress(struct ahash_request *req)
{
struct ahash_request_priv *priv = req->priv;
+ struct crypto_async_request oreq;
- if (err == -EINPROGRESS)
- return;
-
- if (!err)
- memcpy(priv->result, req->result,
- crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
+ oreq.data = priv->data;
- ahash_restore_req(req);
+ priv->complete(&oreq, -EINPROGRESS);
}
static void ahash_op_unaligned_done(struct crypto_async_request *req, int err)
{
struct ahash_request *areq = req->data;
+ if (err == -EINPROGRESS) {
+ ahash_notify_einprogress(areq);
+ return;
+ }
+
/*
* Restore the original request, see ahash_op_unaligned() for what
* goes where.
@@ -326,7 +335,7 @@ static void ahash_op_unaligned_done(struct crypto_async_request *req, int err)
*/
/* First copy req->result into req->priv.result */
- ahash_op_unaligned_finish(areq, err);
+ ahash_restore_req(areq, err);
/* Complete the ORIGINAL request. */
areq->base.complete(&areq->base, err);
@@ -342,7 +351,12 @@ static int ahash_op_unaligned(struct ahash_request *req,
return err;
err = op(req);
- ahash_op_unaligned_finish(req, err);
+ if (err == -EINPROGRESS ||
+ (err == -EBUSY && (ahash_request_flags(req) &
+ CRYPTO_TFM_REQ_MAY_BACKLOG)))
+ return err;
+
+ ahash_restore_req(req, err);
return err;
}
@@ -377,25 +391,14 @@ int crypto_ahash_digest(struct ahash_request *req)
}
EXPORT_SYMBOL_GPL(crypto_ahash_digest);
-static void ahash_def_finup_finish2(struct ahash_request *req, int err)
+static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
{
- struct ahash_request_priv *priv = req->priv;
+ struct ahash_request *areq = req->data;
if (err == -EINPROGRESS)
return;
- if (!err)
- memcpy(priv->result, req->result,
- crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
-
- ahash_restore_req(req);
-}
-
-static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
-{
- struct ahash_request *areq = req->data;
-
- ahash_def_finup_finish2(areq, err);
+ ahash_restore_req(areq, err);
areq->base.complete(&areq->base, err);
}
@@ -406,11 +409,15 @@ static int ahash_def_finup_finish1(struct ahash_request *req, int err)
goto out;
req->base.complete = ahash_def_finup_done2;
- req->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+
err = crypto_ahash_reqtfm(req)->final(req);
+ if (err == -EINPROGRESS ||
+ (err == -EBUSY && (ahash_request_flags(req) &
+ CRYPTO_TFM_REQ_MAY_BACKLOG)))
+ return err;
out:
- ahash_def_finup_finish2(req, err);
+ ahash_restore_req(req, err);
return err;
}
@@ -418,7 +425,16 @@ static void ahash_def_finup_done1(struct crypto_async_request *req, int err)
{
struct ahash_request *areq = req->data;
+ if (err == -EINPROGRESS) {
+ ahash_notify_einprogress(areq);
+ return;
+ }
+
+ areq->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+
err = ahash_def_finup_finish1(areq, err);
+ if (areq->priv)
+ return;
areq->base.complete(&areq->base, err);
}
@@ -433,6 +449,11 @@ static int ahash_def_finup(struct ahash_request *req)
return err;
err = tfm->update(req);
+ if (err == -EINPROGRESS ||
+ (err == -EBUSY && (ahash_request_flags(req) &
+ CRYPTO_TFM_REQ_MAY_BACKLOG)))
+ return err;
+
return ahash_def_finup_finish1(req, err);
}
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index 14c2a07c9f3f..67d7489ced01 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -979,7 +979,11 @@ static int cmp_map(const void *m0, const void *m1)
const struct nfit_set_info_map *map0 = m0;
const struct nfit_set_info_map *map1 = m1;
- return map0->region_offset - map1->region_offset;
+ if (map0->region_offset < map1->region_offset)
+ return -1;
+ else if (map0->region_offset > map1->region_offset)
+ return 1;
+ return 0;
}
/* Retrieve the nth entry referencing this spa */
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 1648de80e230..62a93b685c54 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -574,13 +574,13 @@ static int zram_decompress_page(struct zram *zram, char *mem, u32 index)
if (!handle || zram_test_flag(meta, index, ZRAM_ZERO)) {
bit_spin_unlock(ZRAM_ACCESS, &meta->table[index].value);
- clear_page(mem);
+ memset(mem, 0, PAGE_SIZE);
return 0;
}
cmem = zs_map_object(meta->mem_pool, handle, ZS_MM_RO);
if (size == PAGE_SIZE)
- copy_page(mem, cmem);
+ memcpy(mem, cmem, PAGE_SIZE);
else
ret = zcomp_decompress(zram->comp, cmem, size, mem);
zs_unmap_object(meta->mem_pool, handle);
@@ -738,7 +738,7 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index,
if ((clen == PAGE_SIZE) && !is_partial_io(bvec)) {
src = kmap_atomic(page);
- copy_page(cmem, src);
+ memcpy(cmem, src, PAGE_SIZE);
kunmap_atomic(src);
} else {
memcpy(cmem, src, clen);
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index a043107da2af..3143db57ce44 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -583,10 +583,12 @@ config TELCLOCK
controlling the behavior of this hardware.
config DEVPORT
- bool
- depends on !M68K
+ bool "/dev/port character device"
depends on ISA || PCI
default y
+ help
+ Say Y here if you want to support the /dev/port device. The /dev/port
+ device is similar to /dev/mem, but for I/O ports.
source "drivers/s390/char/Kconfig"
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 6b1721f978c2..e901463d4972 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -59,6 +59,10 @@ static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
#endif
#ifdef CONFIG_STRICT_DEVMEM
+static inline int page_is_allowed(unsigned long pfn)
+{
+ return devmem_is_allowed(pfn);
+}
static inline int range_is_allowed(unsigned long pfn, unsigned long size)
{
u64 from = ((u64)pfn) << PAGE_SHIFT;
@@ -78,6 +82,10 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
return 1;
}
#else
+static inline int page_is_allowed(unsigned long pfn)
+{
+ return 1;
+}
static inline int range_is_allowed(unsigned long pfn, unsigned long size)
{
return 1;
@@ -125,23 +133,31 @@ static ssize_t read_mem(struct file *file, char __user *buf,
while (count > 0) {
unsigned long remaining;
+ int allowed;
sz = size_inside_page(p, count);
- if (!range_is_allowed(p >> PAGE_SHIFT, count))
+ allowed = page_is_allowed(p >> PAGE_SHIFT);
+ if (!allowed)
return -EPERM;
+ if (allowed == 2) {
+ /* Show zeros for restricted memory. */
+ remaining = clear_user(buf, sz);
+ } else {
+ /*
+ * On ia64 if a page has been mapped somewhere as
+ * uncached, then it must also be accessed uncached
+ * by the kernel or data corruption may occur.
+ */
+ ptr = xlate_dev_mem_ptr(p);
+ if (!ptr)
+ return -EFAULT;
- /*
- * On ia64 if a page has been mapped somewhere as uncached, then
- * it must also be accessed uncached by the kernel or data
- * corruption may occur.
- */
- ptr = xlate_dev_mem_ptr(p);
- if (!ptr)
- return -EFAULT;
+ remaining = copy_to_user(buf, ptr, sz);
+
+ unxlate_dev_mem_ptr(p, ptr);
+ }
- remaining = copy_to_user(buf, ptr, sz);
- unxlate_dev_mem_ptr(p, ptr);
if (remaining)
return -EFAULT;
@@ -184,30 +200,36 @@ static ssize_t write_mem(struct file *file, const char __user *buf,
#endif
while (count > 0) {
+ int allowed;
+
sz = size_inside_page(p, count);
- if (!range_is_allowed(p >> PAGE_SHIFT, sz))
+ allowed = page_is_allowed(p >> PAGE_SHIFT);
+ if (!allowed)
return -EPERM;
- /*
- * On ia64 if a page has been mapped somewhere as uncached, then
- * it must also be accessed uncached by the kernel or data
- * corruption may occur.
- */
- ptr = xlate_dev_mem_ptr(p);
- if (!ptr) {
- if (written)
- break;
- return -EFAULT;
- }
+ /* Skip actual writing when a page is marked as restricted. */
+ if (allowed == 1) {
+ /*
+ * On ia64 if a page has been mapped somewhere as
+ * uncached, then it must also be accessed uncached
+ * by the kernel or data corruption may occur.
+ */
+ ptr = xlate_dev_mem_ptr(p);
+ if (!ptr) {
+ if (written)
+ break;
+ return -EFAULT;
+ }
- copied = copy_from_user(ptr, buf, sz);
- unxlate_dev_mem_ptr(p, ptr);
- if (copied) {
- written += sz - copied;
- if (written)
- break;
- return -EFAULT;
+ copied = copy_from_user(ptr, buf, sz);
+ unxlate_dev_mem_ptr(p, ptr);
+ if (copied) {
+ written += sz - copied;
+ if (written)
+ break;
+ return -EFAULT;
+ }
}
buf += sz;
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 090183f812be..31e8ae916ba0 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1130,6 +1130,8 @@ static int put_chars(u32 vtermno, const char *buf, int count)
{
struct port *port;
struct scatterlist sg[1];
+ void *data;
+ int ret;
if (unlikely(early_put_chars))
return early_put_chars(vtermno, buf, count);
@@ -1138,8 +1140,14 @@ static int put_chars(u32 vtermno, const char *buf, int count)
if (!port)
return -EPIPE;
- sg_init_one(sg, buf, count);
- return __send_to_port(port, sg, 1, count, (void *)buf, false);
+ data = kmemdup(buf, count, GFP_ATOMIC);
+ if (!data)
+ return -ENOMEM;
+
+ sg_init_one(sg, data, count);
+ ret = __send_to_port(port, sg, 1, count, data, false);
+ kfree(data);
+ return ret;
}
/*
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
index ece9f4102c0e..7f8acb3ebfcd 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
@@ -714,7 +714,7 @@ nv4a_chipset = {
.i2c = nv04_i2c_new,
.imem = nv40_instmem_new,
.mc = nv44_mc_new,
- .mmu = nv44_mmu_new,
+ .mmu = nv04_mmu_new,
.pci = nv40_pci_new,
.therm = nv40_therm_new,
.timer = nv41_timer_new,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c
index d4d8942b1347..e55f8302d08a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c
@@ -198,7 +198,7 @@ nv31_mpeg_intr(struct nvkm_engine *engine)
}
if (type == 0x00000010) {
- if (!nv31_mpeg_mthd(mpeg, mthd, data))
+ if (nv31_mpeg_mthd(mpeg, mthd, data))
show &= ~0x01000000;
}
}
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
index d433cfa4a8ab..36af0a8927fc 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
@@ -172,7 +172,7 @@ nv44_mpeg_intr(struct nvkm_engine *engine)
}
if (type == 0x00000010) {
- if (!nv44_mpeg_mthd(subdev->device, mthd, data))
+ if (nv44_mpeg_mthd(subdev->device, mthd, data))
show &= ~0x01000000;
}
}
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 16f000a76de5..3258baf3282e 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -189,6 +189,7 @@ static const struct xpad_device {
{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
+ { 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
@@ -310,6 +311,7 @@ static struct usb_device_id xpad_table[] = {
XPAD_XBOX360_VENDOR(0x1689), /* Razer Onza */
XPAD_XBOX360_VENDOR(0x24c6), /* PowerA Controllers */
XPAD_XBOX360_VENDOR(0x1532), /* Razer Sabertooth */
+ XPAD_XBOXONE_VENDOR(0x1532), /* Razer Wildcat */
XPAD_XBOX360_VENDOR(0x15e4), /* Numark X-Box 360 controllers */
XPAD_XBOX360_VENDOR(0x162e), /* Joytech X-Box 360 controllers */
{ }
diff --git a/drivers/irqchip/irq-imx-gpcv2.c b/drivers/irqchip/irq-imx-gpcv2.c
index 15af9a9753e5..2d203b422129 100644
--- a/drivers/irqchip/irq-imx-gpcv2.c
+++ b/drivers/irqchip/irq-imx-gpcv2.c
@@ -230,6 +230,8 @@ static int __init imx_gpcv2_irqchip_init(struct device_node *node,
return -ENOMEM;
}
+ raw_spin_lock_init(&cd->rlock);
+
cd->gpc_base = of_iomap(node, 0);
if (!cd->gpc_base) {
pr_err("fsl-gpcv2: unable to map gpc registers\n");
diff --git a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
index f5df9eaba04f..9757f35cd5f5 100644
--- a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
+++ b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
@@ -1010,8 +1010,8 @@ EXPORT_SYMBOL(dvb_usbv2_probe);
void dvb_usbv2_disconnect(struct usb_interface *intf)
{
struct dvb_usb_device *d = usb_get_intfdata(intf);
- const char *name = d->name;
- struct device dev = d->udev->dev;
+ const char *devname = kstrdup(dev_name(&d->udev->dev), GFP_KERNEL);
+ const char *drvname = d->name;
dev_dbg(&d->udev->dev, "%s: bInterfaceNumber=%d\n", __func__,
intf->cur_altsetting->desc.bInterfaceNumber);
@@ -1021,8 +1021,9 @@ void dvb_usbv2_disconnect(struct usb_interface *intf)
dvb_usbv2_exit(d);
- dev_info(&dev, "%s: '%s' successfully deinitialized and disconnected\n",
- KBUILD_MODNAME, name);
+ pr_info("%s: '%s:%s' successfully deinitialized and disconnected\n",
+ KBUILD_MODNAME, drvname, devname);
+ kfree(devname);
}
EXPORT_SYMBOL(dvb_usbv2_disconnect);
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
index 733a7ff7b207..caad3b5c01ad 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
@@ -35,42 +35,51 @@ static int usb_cypress_writemem(struct usb_device *udev,u16 addr,u8 *data, u8 le
int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type)
{
- struct hexline hx;
- u8 reset;
- int ret,pos=0;
+ struct hexline *hx;
+ u8 *buf;
+ int ret, pos = 0;
+ u16 cpu_cs_register = cypress[type].cpu_cs_register;
+
+ buf = kmalloc(sizeof(*hx), GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ hx = (struct hexline *)buf;
/* stop the CPU */
- reset = 1;
- if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1)
+ buf[0] = 1;
+ if (usb_cypress_writemem(udev, cpu_cs_register, buf, 1) != 1)
err("could not stop the USB controller CPU.");
- while ((ret = dvb_usb_get_hexline(fw,&hx,&pos)) > 0) {
- deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr,hx.len,hx.chk);
- ret = usb_cypress_writemem(udev,hx.addr,hx.data,hx.len);
+ while ((ret = dvb_usb_get_hexline(fw, hx, &pos)) > 0) {
+ deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n", hx->addr, hx->len, hx->chk);
+ ret = usb_cypress_writemem(udev, hx->addr, hx->data, hx->len);
- if (ret != hx.len) {
+ if (ret != hx->len) {
err("error while transferring firmware "
"(transferred size: %d, block size: %d)",
- ret,hx.len);
+ ret, hx->len);
ret = -EINVAL;
break;
}
}
if (ret < 0) {
err("firmware download failed at %d with %d",pos,ret);
+ kfree(buf);
return ret;
}
if (ret == 0) {
/* restart the CPU */
- reset = 0;
- if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) {
+ buf[0] = 0;
+ if (usb_cypress_writemem(udev, cpu_cs_register, buf, 1) != 1) {
err("could not restart the USB controller CPU.");
ret = -EINVAL;
}
} else
ret = -EIO;
+ kfree(buf);
+
return ret;
}
EXPORT_SYMBOL(usb_cypress_load_firmware);
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 855c43d8f7e0..f9e4988ea30e 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1179,7 +1179,9 @@ map_failed:
static void ibmveth_rx_mss_helper(struct sk_buff *skb, u16 mss, int lrg_pkt)
{
+ struct tcphdr *tcph;
int offset = 0;
+ int hdr_len;
/* only TCP packets will be aggregated */
if (skb->protocol == htons(ETH_P_IP)) {
@@ -1206,14 +1208,20 @@ static void ibmveth_rx_mss_helper(struct sk_buff *skb, u16 mss, int lrg_pkt)
/* if mss is not set through Large Packet bit/mss in rx buffer,
* expect that the mss will be written to the tcp header checksum.
*/
+ tcph = (struct tcphdr *)(skb->data + offset);
if (lrg_pkt) {
skb_shinfo(skb)->gso_size = mss;
} else if (offset) {
- struct tcphdr *tcph = (struct tcphdr *)(skb->data + offset);
-
skb_shinfo(skb)->gso_size = ntohs(tcph->check);
tcph->check = 0;
}
+
+ if (skb_shinfo(skb)->gso_size) {
+ hdr_len = offset + tcph->doff * 4;
+ skb_shinfo(skb)->gso_segs =
+ DIV_ROUND_UP(skb->len - hdr_len,
+ skb_shinfo(skb)->gso_size);
+ }
}
static int ibmveth_poll(struct napi_struct *napi, int budget)
diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index 4e2b26a88b15..2aa1a1d29cb4 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -777,7 +777,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
struct net_device *netdev;
struct catc *catc;
u8 broadcast[ETH_ALEN];
- int i, pktsz;
+ int pktsz, ret;
if (usb_set_interface(usbdev,
intf->altsetting->desc.bInterfaceNumber, 1)) {
@@ -812,12 +812,8 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
if ((!catc->ctrl_urb) || (!catc->tx_urb) ||
(!catc->rx_urb) || (!catc->irq_urb)) {
dev_err(&intf->dev, "No free urbs available.\n");
- usb_free_urb(catc->ctrl_urb);
- usb_free_urb(catc->tx_urb);
- usb_free_urb(catc->rx_urb);
- usb_free_urb(catc->irq_urb);
- free_netdev(netdev);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto fail_free;
}
/* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
@@ -845,15 +841,24 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
catc->irq_buf, 2, catc_irq_done, catc, 1);
if (!catc->is_f5u011) {
+ u32 *buf;
+ int i;
+
dev_dbg(dev, "Checking memory size\n");
- i = 0x12345678;
- catc_write_mem(catc, 0x7a80, &i, 4);
- i = 0x87654321;
- catc_write_mem(catc, 0xfa80, &i, 4);
- catc_read_mem(catc, 0x7a80, &i, 4);
+ buf = kmalloc(4, GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto fail_free;
+ }
+
+ *buf = 0x12345678;
+ catc_write_mem(catc, 0x7a80, buf, 4);
+ *buf = 0x87654321;
+ catc_write_mem(catc, 0xfa80, buf, 4);
+ catc_read_mem(catc, 0x7a80, buf, 4);
- switch (i) {
+ switch (*buf) {
case 0x12345678:
catc_set_reg(catc, TxBufCount, 8);
catc_set_reg(catc, RxBufCount, 32);
@@ -868,6 +873,8 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
dev_dbg(dev, "32k Memory\n");
break;
}
+
+ kfree(buf);
dev_dbg(dev, "Getting MAC from SEEROM.\n");
@@ -914,16 +921,21 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
usb_set_intfdata(intf, catc);
SET_NETDEV_DEV(netdev, &intf->dev);
- if (register_netdev(netdev) != 0) {
- usb_set_intfdata(intf, NULL);
- usb_free_urb(catc->ctrl_urb);
- usb_free_urb(catc->tx_urb);
- usb_free_urb(catc->rx_urb);
- usb_free_urb(catc->irq_urb);
- free_netdev(netdev);
- return -EIO;
- }
+ ret = register_netdev(netdev);
+ if (ret)
+ goto fail_clear_intfdata;
+
return 0;
+
+fail_clear_intfdata:
+ usb_set_intfdata(intf, NULL);
+fail_free:
+ usb_free_urb(catc->ctrl_urb);
+ usb_free_urb(catc->tx_urb);
+ usb_free_urb(catc->rx_urb);
+ usb_free_urb(catc->irq_urb);
+ free_netdev(netdev);
+ return ret;
}
static void catc_disconnect(struct usb_interface *intf)
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index f84080215915..17fac0121e56 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -126,40 +126,61 @@ static void async_ctrl_callback(struct urb *urb)
static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
{
+ u8 *buf;
int ret;
+ buf = kmalloc(size, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0),
PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0,
- indx, data, size, 1000);
+ indx, buf, size, 1000);
if (ret < 0)
netif_dbg(pegasus, drv, pegasus->net,
"%s returned %d\n", __func__, ret);
+ else if (ret <= size)
+ memcpy(data, buf, ret);
+ kfree(buf);
return ret;
}
-static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
+static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
+ const void *data)
{
+ u8 *buf;
int ret;
+ buf = kmemdup(data, size, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0,
- indx, data, size, 100);
+ indx, buf, size, 100);
if (ret < 0)
netif_dbg(pegasus, drv, pegasus->net,
"%s returned %d\n", __func__, ret);
+ kfree(buf);
return ret;
}
static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
{
+ u8 *buf;
int ret;
+ buf = kmemdup(&data, 1, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data,
- indx, &data, 1, 1000);
+ indx, buf, 1, 1000);
if (ret < 0)
netif_dbg(pegasus, drv, pegasus->net,
"%s returned %d\n", __func__, ret);
+ kfree(buf);
return ret;
}
diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c
index d37b7dce2d40..39672984dde1 100644
--- a/drivers/net/usb/rtl8150.c
+++ b/drivers/net/usb/rtl8150.c
@@ -155,16 +155,36 @@ static const char driver_name [] = "rtl8150";
*/
static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
{
- return usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
- RTL8150_REQ_GET_REGS, RTL8150_REQT_READ,
- indx, 0, data, size, 500);
+ void *buf;
+ int ret;
+
+ buf = kmalloc(size, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+ RTL8150_REQ_GET_REGS, RTL8150_REQT_READ,
+ indx, 0, buf, size, 500);
+ if (ret > 0 && ret <= size)
+ memcpy(data, buf, ret);
+ kfree(buf);
+ return ret;
}
-static int set_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
+static int set_registers(rtl8150_t * dev, u16 indx, u16 size, const void *data)
{
- return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
- RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE,
- indx, 0, data, size, 500);
+ void *buf;
+ int ret;
+
+ buf = kmemdup(data, size, GFP_NOIO);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+ RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE,
+ indx, 0, buf, size, 500);
+ kfree(buf);
+ return ret;
}
static void async_set_reg_cb(struct urb *urb)
diff --git a/drivers/net/wireless/ath/ath9k/common-spectral.c b/drivers/net/wireless/ath/ath9k/common-spectral.c
index a8762711ad74..03945731eb65 100644
--- a/drivers/net/wireless/ath/ath9k/common-spectral.c
+++ b/drivers/net/wireless/ath/ath9k/common-spectral.c
@@ -528,6 +528,9 @@ int ath_cmn_process_fft(struct ath_spec_scan_priv *spec_priv, struct ieee80211_h
if (!(radar_info->pulse_bw_info & SPECTRAL_SCAN_BITMASK))
return 0;
+ if (!spec_priv->rfs_chan_spec_scan)
+ return 1;
+
/* Output buffers are full, no need to process anything
* since there is no space to put the result anyway
*/
@@ -1072,7 +1075,7 @@ static struct rchan_callbacks rfs_spec_scan_cb = {
void ath9k_cmn_spectral_deinit_debug(struct ath_spec_scan_priv *spec_priv)
{
- if (config_enabled(CONFIG_ATH9K_DEBUGFS)) {
+ if (config_enabled(CONFIG_ATH9K_DEBUGFS) && spec_priv->rfs_chan_spec_scan) {
relay_close(spec_priv->rfs_chan_spec_scan);
spec_priv->rfs_chan_spec_scan = NULL;
}
@@ -1086,6 +1089,9 @@ void ath9k_cmn_spectral_init_debug(struct ath_spec_scan_priv *spec_priv,
debugfs_phy,
1024, 256, &rfs_spec_scan_cb,
NULL);
+ if (!spec_priv->rfs_chan_spec_scan)
+ return;
+
debugfs_create_file("spectral_scan_ctl",
S_IRUSR | S_IWUSR,
debugfs_phy, spec_priv,
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 5f47356d6942..254b0ee37039 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -590,8 +590,14 @@ static int __nd_ioctl(struct nvdimm_bus *nvdimm_bus, struct nvdimm *nvdimm,
rc = nd_desc->ndctl(nd_desc, nvdimm, cmd, buf, buf_len);
if (rc < 0)
goto out_unlock;
+ nvdimm_bus_unlock(&nvdimm_bus->dev);
+
if (copy_to_user(p, buf, buf_len))
rc = -EFAULT;
+
+ vfree(buf);
+ return rc;
+
out_unlock:
nvdimm_bus_unlock(&nvdimm_bus->dev);
out:
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 1062fa42ff26..b2cdc1a1ad4f 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -1816,11 +1816,24 @@ static int __init acer_wmi_enable_lm(void)
return status;
}
+#define ACER_WMID_ACCEL_HID "BST0001"
+
static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
void *ctx, void **retval)
{
+ struct acpi_device *dev;
+
+ if (!strcmp(ctx, "SENR")) {
+ if (acpi_bus_get_device(ah, &dev))
+ return AE_OK;
+ if (!strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
+ return AE_OK;
+ } else
+ return AE_OK;
+
*(acpi_handle *)retval = ah;
- return AE_OK;
+
+ return AE_CTRL_TERMINATE;
}
static int __init acer_wmi_get_handle(const char *name, const char *prop,
@@ -1847,7 +1860,7 @@ static int __init acer_wmi_accel_setup(void)
{
int err;
- err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
+ err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
if (err)
return err;
@@ -2185,10 +2198,11 @@ static int __init acer_wmi_init(void)
err = acer_wmi_input_setup();
if (err)
return err;
+ err = acer_wmi_accel_setup();
+ if (err)
+ return err;
}
- acer_wmi_accel_setup();
-
err = platform_driver_register(&acer_platform_driver);
if (err) {
pr_err("Unable to register platform driver\n");
diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c
index 60232bd366ef..71216aa68905 100644
--- a/drivers/rtc/rtc-tegra.c
+++ b/drivers/rtc/rtc-tegra.c
@@ -18,6 +18,7 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/kernel.h>
+#include <linux/clk.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -59,6 +60,7 @@ struct tegra_rtc_info {
struct platform_device *pdev;
struct rtc_device *rtc_dev;
void __iomem *rtc_base; /* NULL if not initialized. */
+ struct clk *clk;
int tegra_rtc_irq; /* alarm and periodic irq */
spinlock_t tegra_rtc_lock;
};
@@ -332,6 +334,14 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
if (info->tegra_rtc_irq <= 0)
return -EBUSY;
+ info->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(info->clk))
+ return PTR_ERR(info->clk);
+
+ ret = clk_prepare_enable(info->clk);
+ if (ret < 0)
+ return ret;
+
/* set context info. */
info->pdev = pdev;
spin_lock_init(&info->tegra_rtc_lock);
@@ -352,7 +362,7 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
ret = PTR_ERR(info->rtc_dev);
dev_err(&pdev->dev, "Unable to register device (err=%d).\n",
ret);
- return ret;
+ goto disable_clk;
}
ret = devm_request_irq(&pdev->dev, info->tegra_rtc_irq,
@@ -362,12 +372,25 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
dev_err(&pdev->dev,
"Unable to request interrupt for device (err=%d).\n",
ret);
- return ret;
+ goto disable_clk;
}
dev_notice(&pdev->dev, "Tegra internal Real Time Clock\n");
return 0;
+
+disable_clk:
+ clk_disable_unprepare(info->clk);
+ return ret;
+}
+
+static int tegra_rtc_remove(struct platform_device *pdev)
+{
+ struct tegra_rtc_info *info = platform_get_drvdata(pdev);
+
+ clk_disable_unprepare(info->clk);
+
+ return 0;
}
#ifdef CONFIG_PM_SLEEP
@@ -419,6 +442,7 @@ static void tegra_rtc_shutdown(struct platform_device *pdev)
MODULE_ALIAS("platform:tegra_rtc");
static struct platform_driver tegra_rtc_driver = {
+ .remove = tegra_rtc_remove,
.shutdown = tegra_rtc_shutdown,
.driver = {
.name = "tegra_rtc",
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 78430ef28ea4..4d5207dff960 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2051,6 +2051,22 @@ static void read_capacity_error(struct scsi_disk *sdkp, struct scsi_device *sdp,
#define READ_CAPACITY_RETRIES_ON_RESET 10
+/*
+ * Ensure that we don't overflow sector_t when CONFIG_LBDAF is not set
+ * and the reported logical block size is bigger than 512 bytes. Note
+ * that last_sector is a u64 and therefore logical_to_sectors() is not
+ * applicable.
+ */
+static bool sd_addressable_capacity(u64 lba, unsigned int sector_size)
+{
+ u64 last_sector = (lba + 1ULL) << (ilog2(sector_size) - 9);
+
+ if (sizeof(sector_t) == 4 && last_sector > U32_MAX)
+ return false;
+
+ return true;
+}
+
static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
unsigned char *buffer)
{
@@ -2116,7 +2132,7 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
return -ENODEV;
}
- if ((sizeof(sdkp->capacity) == 4) && (lba >= 0xffffffffULL)) {
+ if (!sd_addressable_capacity(lba, sector_size)) {
sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
"kernel compiled with support for large block "
"devices.\n");
@@ -2202,7 +2218,7 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp,
return sector_size;
}
- if ((sizeof(sdkp->capacity) == 4) && (lba == 0xffffffff)) {
+ if (!sd_addressable_capacity(lba, sector_size)) {
sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
"kernel compiled with support for large block "
"devices.\n");
@@ -2888,7 +2904,8 @@ static int sd_revalidate_disk(struct gendisk *disk)
q->limits.io_opt = logical_to_bytes(sdp, sdkp->opt_xfer_blocks);
rw_max = logical_to_sectors(sdp, sdkp->opt_xfer_blocks);
} else
- rw_max = BLK_DEF_MAX_SECTORS;
+ rw_max = min_not_zero(logical_to_sectors(sdp, dev_max),
+ (sector_t)BLK_DEF_MAX_SECTORS);
/* Combine with controller limits */
q->limits.max_sectors = min(rw_max, queue_max_hw_sectors(q));
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 64c867405ad4..804586aeaffe 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -834,6 +834,7 @@ static void get_capabilities(struct scsi_cd *cd)
unsigned char *buffer;
struct scsi_mode_data data;
struct scsi_sense_hdr sshdr;
+ unsigned int ms_len = 128;
int rc, n;
static const char *loadmech[] =
@@ -860,10 +861,11 @@ static void get_capabilities(struct scsi_cd *cd)
scsi_test_unit_ready(cd->device, SR_TIMEOUT, MAX_RETRIES, &sshdr);
/* ask for mode page 0x2a */
- rc = scsi_mode_sense(cd->device, 0, 0x2a, buffer, 128,
+ rc = scsi_mode_sense(cd->device, 0, 0x2a, buffer, ms_len,
SR_TIMEOUT, 3, &data, NULL);
- if (!scsi_status_is_good(rc)) {
+ if (!scsi_status_is_good(rc) || data.length > ms_len ||
+ data.header_length + data.block_descriptor_length > data.length) {
/* failed, drive doesn't have capabilities mode page */
cd->cdi.speed = 1;
cd->cdi.mask |= (CDC_CD_R | CDC_CD_RW | CDC_DVD_R |
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index 2cbea2af7cd0..6d1b0acbc5b3 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -781,22 +781,6 @@ static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
SET_PSTATE_REPLY_OPTIONAL(param);
/*
- * The GlobalSAN iSCSI Initiator for MacOSX does
- * not respond to MaxBurstLength, FirstBurstLength,
- * DefaultTime2Wait or DefaultTime2Retain parameter keys.
- * So, we set them to 'reply optional' here, and assume the
- * the defaults from iscsi_parameters.h if the initiator
- * is not RFC compliant and the keys are not negotiated.
- */
- if (!strcmp(param->name, MAXBURSTLENGTH))
- SET_PSTATE_REPLY_OPTIONAL(param);
- if (!strcmp(param->name, FIRSTBURSTLENGTH))
- SET_PSTATE_REPLY_OPTIONAL(param);
- if (!strcmp(param->name, DEFAULTTIME2WAIT))
- SET_PSTATE_REPLY_OPTIONAL(param);
- if (!strcmp(param->name, DEFAULTTIME2RETAIN))
- SET_PSTATE_REPLY_OPTIONAL(param);
- /*
* Required for gPXE iSCSI boot client
*/
if (!strcmp(param->name, MAXCONNECTIONS))
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 428b0d9e3dba..93590521ae33 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -731,21 +731,23 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown)
{
struct se_cmd *se_cmd = NULL;
int rc;
+ bool op_scsi = false;
/*
* Determine if a struct se_cmd is associated with
* this struct iscsi_cmd.
*/
switch (cmd->iscsi_opcode) {
case ISCSI_OP_SCSI_CMD:
- se_cmd = &cmd->se_cmd;
- __iscsit_free_cmd(cmd, true, shutdown);
+ op_scsi = true;
/*
* Fallthrough
*/
case ISCSI_OP_SCSI_TMFUNC:
- rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
- if (!rc && shutdown && se_cmd && se_cmd->se_sess) {
- __iscsit_free_cmd(cmd, true, shutdown);
+ se_cmd = &cmd->se_cmd;
+ __iscsit_free_cmd(cmd, op_scsi, shutdown);
+ rc = transport_generic_free_cmd(se_cmd, shutdown);
+ if (!rc && shutdown && se_cmd->se_sess) {
+ __iscsit_free_cmd(cmd, op_scsi, shutdown);
target_put_sess_cmd(se_cmd);
}
break;
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index a15070a7fcd6..53e4d5056db7 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -810,6 +810,11 @@ static void atmel_complete_tx_dma(void *arg)
*/
if (!uart_circ_empty(xmit))
tasklet_schedule(&atmel_port->tasklet);
+ else if ((port->rs485.flags & SER_RS485_ENABLED) &&
+ !(port->rs485.flags & SER_RS485_RX_DURING_TX)) {
+ /* DMA done, stop TX, start RX for RS485 */
+ atmel_start_rx(port);
+ }
spin_unlock_irqrestore(&port->lock, flags);
}
@@ -912,12 +917,6 @@ static void atmel_tx_dma(struct uart_port *port)
desc->callback = atmel_complete_tx_dma;
desc->callback_param = atmel_port;
atmel_port->cookie_tx = dmaengine_submit(desc);
-
- } else {
- if (port->rs485.flags & SER_RS485_ENABLED) {
- /* DMA done, stop TX, start RX for RS485 */
- atmel_start_rx(port);
- }
}
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
diff --git a/drivers/video/fbdev/xen-fbfront.c b/drivers/video/fbdev/xen-fbfront.c
index 0567d517eed3..ea2f19f5fbde 100644
--- a/drivers/video/fbdev/xen-fbfront.c
+++ b/drivers/video/fbdev/xen-fbfront.c
@@ -644,7 +644,6 @@ static void xenfb_backend_changed(struct xenbus_device *dev,
break;
case XenbusStateInitWait:
-InitWait:
xenbus_switch_state(dev, XenbusStateConnected);
break;
@@ -655,7 +654,8 @@ InitWait:
* get Connected twice here.
*/
if (dev->state != XenbusStateConnected)
- goto InitWait; /* no InitWait seen yet, fudge it */
+ /* no InitWait seen yet, fudge it */
+ xenbus_switch_state(dev, XenbusStateConnected);
if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
"request-update", "%d", &val) < 0)
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 72f270d4bd17..a0c0a49b6620 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2545,7 +2545,7 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
wdata->credits = credits;
if (!wdata->cfile->invalidHandle ||
- !cifs_reopen_file(wdata->cfile, false))
+ !(rc = cifs_reopen_file(wdata->cfile, false)))
rc = server->ops->async_writev(wdata,
cifs_uncached_writedata_release);
if (rc) {
@@ -2958,7 +2958,7 @@ cifs_send_async_read(loff_t offset, size_t len, struct cifsFileInfo *open_file,
rdata->credits = credits;
if (!rdata->cfile->invalidHandle ||
- !cifs_reopen_file(rdata->cfile, true))
+ !(rc = cifs_reopen_file(rdata->cfile, true)))
rc = server->ops->async_readv(rdata);
error:
if (rc) {
@@ -3544,7 +3544,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
}
if (!rdata->cfile->invalidHandle ||
- !cifs_reopen_file(rdata->cfile, true))
+ !(rc = cifs_reopen_file(rdata->cfile, true)))
rc = server->ops->async_readv(rdata);
if (rc) {
add_credits_and_wake_if(server, rdata->credits, 0);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 7dcc97eadb12..817a937de733 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -71,10 +71,9 @@ static __u32 ext4_inode_csum(struct inode *inode, struct ext4_inode *raw,
csum = ext4_chksum(sbi, csum, (__u8 *)&dummy_csum,
csum_size);
offset += csum_size;
- csum = ext4_chksum(sbi, csum, (__u8 *)raw + offset,
- EXT4_INODE_SIZE(inode->i_sb) -
- offset);
}
+ csum = ext4_chksum(sbi, csum, (__u8 *)raw + offset,
+ EXT4_INODE_SIZE(inode->i_sb) - offset);
}
return csum;
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index d598b9c809c1..db1a1427c27a 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -803,7 +803,14 @@ static inline void clear_soft_dirty(struct vm_area_struct *vma,
static inline void clear_soft_dirty_pmd(struct vm_area_struct *vma,
unsigned long addr, pmd_t *pmdp)
{
- pmd_t pmd = pmdp_huge_get_and_clear(vma->vm_mm, addr, pmdp);
+ pmd_t pmd = *pmdp;
+
+ /* See comment in change_huge_pmd() */
+ pmdp_invalidate(vma, addr, pmdp);
+ if (pmd_dirty(*pmdp))
+ pmd = pmd_mkdirty(pmd);
+ if (pmd_young(*pmdp))
+ pmd = pmd_mkyoung(pmd);
pmd = pmd_wrprotect(pmd);
pmd = pmd_clear_soft_dirty(pmd);
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index 3b4af1d7c7e9..a25414ce2898 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -173,6 +173,16 @@ static inline struct ahash_instance *ahash_alloc_instance(
return crypto_alloc_instance2(name, alg, ahash_instance_headroom());
}
+static inline void ahash_request_complete(struct ahash_request *req, int err)
+{
+ req->base.complete(&req->base, err);
+}
+
+static inline u32 ahash_request_flags(struct ahash_request *req)
+{
+ return req->base.flags;
+}
+
static inline struct crypto_ahash *crypto_spawn_ahash(
struct crypto_ahash_spawn *spawn)
{
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index cb91b44f5f78..ad2bcf647b9a 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -528,6 +528,25 @@ static inline void pr_cont_cgroup_path(struct cgroup *cgrp)
pr_cont_kernfs_path(cgrp->kn);
}
+static inline void cgroup_init_kthreadd(void)
+{
+ /*
+ * kthreadd is inherited by all kthreads, keep it in the root so
+ * that the new kthreads are guaranteed to stay in the root until
+ * initialization is finished.
+ */
+ current->no_cgroup_migration = 1;
+}
+
+static inline void cgroup_kthread_ready(void)
+{
+ /*
+ * This kthread finished initialization. The creator should have
+ * set PF_NO_SETAFFINITY if this kthread should stay in the root.
+ */
+ current->no_cgroup_migration = 0;
+}
+
#else /* !CONFIG_CGROUPS */
struct cgroup_subsys_state;
@@ -551,6 +570,8 @@ static inline void cgroup_free(struct task_struct *p) {}
static inline int cgroup_init_early(void) { return 0; }
static inline int cgroup_init(void) { return 0; }
+static inline void cgroup_init_kthreadd(void) {}
+static inline void cgroup_kthread_ready(void) {}
#endif /* !CONFIG_CGROUPS */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ce0f61dcd887..352213b360d7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1475,6 +1475,10 @@ struct task_struct {
#ifdef CONFIG_COMPAT_BRK
unsigned brk_randomized:1;
#endif
+#ifdef CONFIG_CGROUPS
+ /* disallow userland-initiated cgroup migration */
+ unsigned no_cgroup_migration:1;
+#endif
unsigned long atomic_flags; /* Flags needing atomic access. */
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 127c63e02d52..4cb94b678e9f 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2752,11 +2752,12 @@ static ssize_t __cgroup_procs_write(struct kernfs_open_file *of, char *buf,
tsk = tsk->group_leader;
/*
- * Workqueue threads may acquire PF_NO_SETAFFINITY and become
- * trapped in a cpuset, or RT worker may be born in a cgroup
- * with no rt_runtime allocated. Just say no.
+ * kthreads may acquire PF_NO_SETAFFINITY during initialization.
+ * If userland migrates such a kthread to a non-root cgroup, it can
+ * become trapped in a cpuset, or RT kthread may be born in a
+ * cgroup with no rt_runtime allocated. Just say no.
*/
- if (tsk == kthreadd_task || (tsk->flags & PF_NO_SETAFFINITY)) {
+ if (tsk->no_cgroup_migration || (tsk->flags & PF_NO_SETAFFINITY)) {
ret = -EINVAL;
goto out_unlock_rcu;
}
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 9ff173dca1ae..850b255649a2 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -18,6 +18,7 @@
#include <linux/freezer.h>
#include <linux/ptrace.h>
#include <linux/uaccess.h>
+#include <linux/cgroup.h>
#include <trace/events/sched.h>
static DEFINE_SPINLOCK(kthread_create_lock);
@@ -205,6 +206,7 @@ static int kthread(void *_create)
ret = -EINTR;
if (!test_bit(KTHREAD_SHOULD_STOP, &self.flags)) {
+ cgroup_kthread_ready();
__kthread_parkme(&self);
ret = threadfn(data);
}
@@ -510,6 +512,7 @@ int kthreadd(void *unused)
set_mems_allowed(node_states[N_MEMORY]);
current->flags |= PF_NOFREEZE;
+ cgroup_init_kthreadd();
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 3f743b147247..34b2a0d5cf1a 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3677,23 +3677,24 @@ static void __enable_ftrace_function_probe(struct ftrace_ops_hash *old_hash)
ftrace_probe_registered = 1;
}
-static void __disable_ftrace_function_probe(void)
+static bool __disable_ftrace_function_probe(void)
{
int i;
if (!ftrace_probe_registered)
- return;
+ return false;
for (i = 0; i < FTRACE_FUNC_HASHSIZE; i++) {
struct hlist_head *hhd = &ftrace_func_hash[i];
if (hhd->first)
- return;
+ return false;
}
/* no more funcs left */
ftrace_shutdown(&trace_probe_ops, 0);
ftrace_probe_registered = 0;
+ return true;
}
@@ -3820,6 +3821,7 @@ static void
__unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
void *data, int flags)
{
+ struct ftrace_ops_hash old_hash_ops;
struct ftrace_func_entry *rec_entry;
struct ftrace_func_probe *entry;
struct ftrace_func_probe *p;
@@ -3831,6 +3833,7 @@ __unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
struct hlist_node *tmp;
char str[KSYM_SYMBOL_LEN];
int i, ret;
+ bool disabled;
if (glob && (strcmp(glob, "*") == 0 || !strlen(glob)))
func_g.search = NULL;
@@ -3849,6 +3852,10 @@ __unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
mutex_lock(&trace_probe_ops.func_hash->regex_lock);
+ old_hash_ops.filter_hash = old_hash;
+ /* Probes only have filters */
+ old_hash_ops.notrace_hash = NULL;
+
hash = alloc_and_copy_ftrace_hash(FTRACE_HASH_DEFAULT_BITS, *orig_hash);
if (!hash)
/* Hmm, should report this somehow */
@@ -3886,12 +3893,17 @@ __unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
}
}
mutex_lock(&ftrace_lock);
- __disable_ftrace_function_probe();
+ disabled = __disable_ftrace_function_probe();
/*
* Remove after the disable is called. Otherwise, if the last
* probe is removed, a null hash means *all enabled*.
*/
ret = ftrace_hash_move(&trace_probe_ops, 1, orig_hash, hash);
+
+ /* still need to update the function call sites */
+ if (ftrace_enabled && !disabled)
+ ftrace_run_modify_code(&trace_probe_ops, FTRACE_UPDATE_CALLS,
+ &old_hash_ops);
synchronize_sched();
if (!ret)
free_ftrace_hash_rcu(old_hash);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 36bf4c3fe4f5..9f0aa255e288 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2084,6 +2084,8 @@ static int ip6_route_del(struct fib6_config *cfg)
continue;
if (cfg->fc_metric && cfg->fc_metric != rt->rt6i_metric)
continue;
+ if (cfg->fc_protocol && cfg->fc_protocol != rt->rt6i_protocol)
+ continue;
dst_hold(&rt->dst);
read_unlock_bh(&table->tb6_lock);
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 138f2d667212..5758818435f3 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4422,6 +4422,12 @@ int sctp_do_peeloff(struct sock *sk, sctp_assoc_t id, struct socket **sockp)
if (!asoc)
return -EINVAL;
+ /* If there is a thread waiting on more sndbuf space for
+ * sending on this asoc, it cannot be peeled.
+ */
+ if (waitqueue_active(&asoc->wait))
+ return -EBUSY;
+
/* An association cannot be branched off from an already peeled-off
* socket, nor is this supported for tcp style sockets.
*/
@@ -6960,8 +6966,6 @@ static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
*/
release_sock(sk);
current_timeo = schedule_timeout(current_timeo);
- if (sk != asoc->base.sk)
- goto do_error;
lock_sock(sk);
*timeo_p = current_timeo;
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 06095cc8815e..1f0687d8e3d7 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -541,9 +541,13 @@ gss_setup_upcall(struct gss_auth *gss_auth, struct rpc_cred *cred)
return gss_new;
gss_msg = gss_add_msg(gss_new);
if (gss_msg == gss_new) {
- int res = rpc_queue_upcall(gss_new->pipe, &gss_new->msg);
+ int res;
+ atomic_inc(&gss_msg->count);
+ res = rpc_queue_upcall(gss_new->pipe, &gss_new->msg);
if (res) {
gss_unhash_msg(gss_new);
+ atomic_dec(&gss_msg->count);
+ gss_release_msg(gss_new);
gss_msg = ERR_PTR(res);
}
} else
@@ -836,6 +840,7 @@ gss_pipe_destroy_msg(struct rpc_pipe_msg *msg)
warn_gssd();
gss_release_msg(gss_msg);
}
+ gss_release_msg(gss_msg);
}
static void gss_pipe_dentry_destroy(struct dentry *dir,
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