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Date: Sun, 02 Mar 2008 14:53:19 -0800
From: Harvey Harrison <harvey.harrison@...il.com>
To: Mauro Carvalho Chehab <mchehab@...radead.org>
Cc: Andrew Morton <akpm@...l.org>, LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/3] saa7146: checkpatch/kernel style fixes
space after comma
change (NULL == foo) to !foo
unnecessary braces on single statement blocks
Fix some exceptionally long lines
Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
---
drivers/media/common/saa7146_core.c | 171 +++++++++++++++++------------------
1 files changed, 84 insertions(+), 87 deletions(-)
diff --git a/drivers/media/common/saa7146_core.c b/drivers/media/common/saa7146_core.c
index 7c03819..7d44bb3 100644
--- a/drivers/media/common/saa7146_core.c
+++ b/drivers/media/common/saa7146_core.c
@@ -1,22 +1,22 @@
/*
- saa7146.o - driver for generic saa7146-based hardware
-
- Copyright (C) 1998-2003 Michael Hunold <michael@...u.de>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+ * saa7146.o - driver for generic saa7146-based hardware
+ *
+ * Copyright (C) 1998-2003 Michael Hunold <michael@...u.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
#include <media/saa7146.h>
@@ -34,21 +34,9 @@ EXPORT_SYMBOL_GPL(saa7146_debug);
module_param(saa7146_debug, uint, 0644);
MODULE_PARM_DESC(saa7146_debug, "debug level (default: 0)");
-#if 0
-static void dump_registers(struct saa7146_dev* dev)
-{
- int i = 0;
-
- INFO((" @ %li jiffies:\n",jiffies));
- for(i = 0; i <= 0x148; i+=4) {
- printk("0x%03x: 0x%08x\n",i,saa7146_read(dev,i));
- }
-}
-#endif
-
-/****************************************************************************
+/*
* gpio and debi helper functions
- ****************************************************************************/
+ */
void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data)
{
@@ -63,7 +51,9 @@ void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data)
}
EXPORT_SYMBOL_GPL(saa7146_setgpio);
-/* This DEBI code is based on the saa7146 Stradis driver by Nathan Laredo */
+/*
+ * This DEBI code is based on the saa7146 Stradis driver by Nathan Laredo
+ */
static inline int saa7146_wait_for_debi_done_sleep(struct saa7146_dev *dev,
unsigned long us1, unsigned long us2)
{
@@ -162,12 +152,12 @@ static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages)
int i;
sglist = kcalloc(nr_pages, sizeof(struct scatterlist), GFP_KERNEL);
- if (NULL == sglist)
+ if (!sglist)
return NULL;
sg_init_table(sglist, nr_pages);
for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) {
pg = vmalloc_to_page(virt);
- if (NULL == pg)
+ if (!pg)
goto err;
BUG_ON(PageHighMem(pg));
sg_set_page(&sglist[i], pg, PAGE_SIZE, 0);
@@ -184,14 +174,15 @@ static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages)
void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt)
{
- int pages = (length+PAGE_SIZE-1)/PAGE_SIZE;
+ int pages = (length + PAGE_SIZE - 1) / PAGE_SIZE;
void *mem = vmalloc_32(length);
int slen = 0;
- if (NULL == mem)
+ if (!mem)
goto err_null;
- if (!(pt->slist = vmalloc_to_sg(mem, pages)))
+ pt->slist = vmalloc_to_sg(mem, pages);
+ if (!pt->slist)
goto err_free_mem;
if (saa7146_pgtable_alloc(pci, pt))
@@ -199,10 +190,10 @@ void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa
pt->nents = pages;
slen = pci_map_sg(pci,pt->slist,pt->nents,PCI_DMA_FROMDEVICE);
- if (0 == slen)
+ if (!slen)
goto err_free_pgtable;
- if (0 != saa7146_pgtable_build_single(pci, pt, pt->slist, slen))
+ if (saa7146_pgtable_build_single(pci, pt, pt->slist, slen))
goto err_unmap_sg;
return mem;
@@ -233,7 +224,7 @@ EXPORT_SYMBOL_GPL(saa7146_vfree_destroy_pgtable);
void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt)
{
- if (NULL == pt->cpu)
+ if (!pt->cpu)
return;
pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
pt->cpu = NULL;
@@ -246,9 +237,9 @@ int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt)
dma_addr_t dma_addr;
cpu = pci_alloc_consistent(pci, PAGE_SIZE, &dma_addr);
- if (NULL == cpu) {
+ if (!cpu)
return -ENOMEM;
- }
+
pt->size = PAGE_SIZE;
pt->cpu = cpu;
pt->dma = dma_addr;
@@ -258,11 +249,11 @@ int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt)
EXPORT_SYMBOL_GPL(saa7146_pgtable_alloc);
int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt,
- struct scatterlist *list, int sglen )
+ struct scatterlist *list, int sglen)
{
u32 *ptr, fill;
int nr_pages = 0;
- int i,p;
+ int i, p;
BUG_ON(0 == sglen);
BUG_ON(list->offset > PAGE_SIZE);
@@ -285,9 +276,8 @@ int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt
/* safety; fill the page table up with the last valid page */
fill = *(ptr-1);
- for(i=nr_pages;i<1024;i++) {
+ for (i = nr_pages; i < 1024; i++)
*ptr++ = fill;
- }
/*
ptr = pt->cpu;
@@ -300,8 +290,9 @@ int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt
}
EXPORT_SYMBOL_GPL(saa7146_pgtable_build_single);
-/********************************************************************************/
-/* interrupt handler */
+/*
+ * interrupt handler
+ */
static irqreturn_t interrupt_hw(int irq, void *dev_id)
{
struct saa7146_dev *dev = dev_id;
@@ -312,36 +303,36 @@ static irqreturn_t interrupt_hw(int irq, void *dev_id)
ack_isr = isr = saa7146_read(dev, ISR);
/* is this our interrupt? */
- if ( 0 == isr ) {
+ if (!isr) {
/* nope, some other device */
return IRQ_NONE;
}
- if( NULL != (dev->ext)) {
- if( 0 != (dev->ext->irq_mask & isr )) {
- if( NULL != dev->ext->irq_func ) {
+ if (dev->ext) {
+ if (dev->ext->irq_mask & isr) {
+ if (dev->ext->irq_func)
dev->ext->irq_func(dev, &isr);
- }
+
isr &= ~dev->ext->irq_mask;
}
}
- if (0 != (isr & (MASK_27))) {
- DEB_INT(("irq: RPS0 (0x%08x).\n",isr));
- if( NULL != dev->vv_data && NULL != dev->vv_callback) {
- dev->vv_callback(dev,isr);
- }
+ if (isr & (MASK_27)) {
+ DEB_INT(("irq: RPS0 (0x%08x).\n", isr));
+ if (dev->vv_data && dev->vv_callback)
+ dev->vv_callback(dev, isr);
+
isr &= ~MASK_27;
}
- if (0 != (isr & (MASK_28))) {
- if( NULL != dev->vv_data && NULL != dev->vv_callback) {
- dev->vv_callback(dev,isr);
- }
+ if (isr & (MASK_28)) {
+ if (dev->vv_data && dev->vv_callback)
+ dev->vv_callback(dev, isr);
+
isr &= ~MASK_28;
}
- if (0 != (isr & (MASK_16|MASK_17))) {
+ if (isr & (MASK_16|MASK_17)) {
SAA7146_IER_DISABLE(dev, MASK_16|MASK_17);
/* only wake up if we expect something */
- if (0 != dev->i2c_op) {
+ if (dev->i2c_op) {
dev->i2c_op = 0;
wake_up(&dev->i2c_wq);
} else {
@@ -352,25 +343,29 @@ static irqreturn_t interrupt_hw(int irq, void *dev_id)
}
isr &= ~(MASK_16|MASK_17);
}
- if( 0 != isr ) {
- ERR(("warning: interrupt enabled, but not handled properly.(0x%08x)\n",isr));
+ if (isr) {
+ ERR(("warning: interrupt enabled, but not handled properly.(0x%08x)\n", isr));
ERR(("disabling interrupt source(s)!\n"));
- SAA7146_IER_DISABLE(dev,isr);
+ SAA7146_IER_DISABLE(dev, isr);
}
saa7146_write(dev, ISR, ack_isr);
return IRQ_HANDLED;
}
-/*********************************************************************************/
-/* configuration-functions */
+/*
+ * configuration-functions
+ */
static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent)
{
- struct saa7146_pci_extension_data *pci_ext = (struct saa7146_pci_extension_data *)ent->driver_data;
- struct saa7146_extension *ext = pci_ext->ext;
+ struct saa7146_pci_extension_data *pci_ext;
+ struct saa7146_extension *ext;
struct saa7146_dev *dev;
int err = -ENOMEM;
+ pci_ext = (struct saa7146_pci_extension_data *)ent->driver_data;
+ ext = pci_ext->ext;
+
/* clear out mem for sure */
dev = kzalloc(sizeof(struct saa7146_dev), GFP_KERNEL);
if (!dev) {
@@ -378,7 +373,7 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
goto out;
}
- DEB_EE(("pci:%p\n",pci));
+ DEB_EE(("pci:%p\n", pci));
err = pci_enable_device(pci);
if (err < 0) {
@@ -463,7 +458,8 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
/* create a nice device name */
sprintf(dev->name, "saa7146 (%d)", saa7146_num);
- INFO(("found saa7146 @ mem %p (revision %d, irq %d) (0x%04x,0x%04x).\n", dev->mem, dev->revision, pci->irq, pci->subsystem_vendor, pci->subsystem_device));
+ INFO(("found saa7146 @ mem %p (revision %d, irq %d) (0x%04x,0x%04x).\n",
+ dev->mem, dev->revision, pci->irq, pci->subsystem_vendor, pci->subsystem_device));
dev->ext = ext;
pci_set_drvdata(pci, dev);
@@ -485,17 +481,17 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
err = -ENODEV;
if (ext->probe && ext->probe(dev)) {
- DEB_D(("ext->probe() failed for %p. skipping device.\n",dev));
+ DEB_D(("ext->probe() failed for %p. skipping device.\n", dev));
goto err_free_i2c;
}
if (ext->attach(dev, pci_ext)) {
- DEB_D(("ext->attach() failed for %p. skipping device.\n",dev));
+ DEB_D(("ext->attach() failed for %p. skipping device.\n", dev));
goto err_unprobe;
}
INIT_LIST_HEAD(&dev->item);
- list_add_tail(&dev->item,&saa7146_devices);
+ list_add_tail(&dev->item, &saa7146_devices);
saa7146_num++;
err = 0;
@@ -528,7 +524,7 @@ err_free:
static void saa7146_remove_one(struct pci_dev *pdev)
{
- struct saa7146_dev* dev = pci_get_drvdata(pdev);
+ struct saa7146_dev *dev = pci_get_drvdata(pdev);
struct {
void *addr;
dma_addr_t dma;
@@ -539,7 +535,7 @@ static void saa7146_remove_one(struct pci_dev *pdev)
{ NULL, 0 }
}, *p;
- DEB_EE(("dev:%p\n",dev));
+ DEB_EE(("dev:%p\n", dev));
dev->ext->detach(dev);
@@ -563,27 +559,28 @@ static void saa7146_remove_one(struct pci_dev *pdev)
saa7146_num--;
}
-/*********************************************************************************/
-/* extension handling functions */
+/*
+ * extension handling functions
+ */
-int saa7146_register_extension(struct saa7146_extension* ext)
+int saa7146_register_extension(struct saa7146_extension *ext)
{
- DEB_EE(("ext:%p\n",ext));
+ DEB_EE(("ext:%p\n", ext));
ext->driver.name = ext->name;
ext->driver.id_table = ext->pci_tbl;
ext->driver.probe = saa7146_init_one;
ext->driver.remove = saa7146_remove_one;
- printk("saa7146: register extension '%s'.\n",ext->name);
+ printk("saa7146: register extension '%s'.\n", ext->name);
return pci_register_driver(&ext->driver);
}
EXPORT_SYMBOL_GPL(saa7146_register_extension);
-int saa7146_unregister_extension(struct saa7146_extension* ext)
+int saa7146_unregister_extension(struct saa7146_extension *ext)
{
- DEB_EE(("ext:%p\n",ext));
- printk("saa7146: unregister extension '%s'.\n",ext->name);
+ DEB_EE(("ext:%p\n", ext));
+ printk("saa7146: unregister extension '%s'.\n", ext->name);
pci_unregister_driver(&ext->driver);
return 0;
}
--
1.5.4.3.409.g8811
--
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