| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1427408887-27979-2-git-send-email-tomas.winkler@intel.com>
Date: Fri, 27 Mar 2015 00:27:58 +0200
From: Tomas Winkler <tomas.winkler@...el.com>
To: gregkh@...uxfoundation.org
Cc: arnd@...db.de, linux-kernel@...r.kernel.org,
Tomas Winkler <tomas.winkler@...el.com>
Subject: [char-misc-next 02/11] mei: use mei_cl_is_connected consistently
Replace open coded check for cl->state !=/== MEI_FILE_CONNECTED
with mei_cl_is_connected function.
Note that cl->state != MEI_FILE_CONNECTED is not the same
as cl->state == MEI_FILE_DISCONNECTED
Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
drivers/misc/mei/bus.c | 4 ++--
drivers/misc/mei/client.c | 2 +-
drivers/misc/mei/interrupt.c | 2 +-
drivers/misc/mei/main.c | 13 +++++++------
drivers/misc/mei/wd.c | 18 +++++++++++-------
5 files changed, 22 insertions(+), 17 deletions(-)
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 45896f95fed1..b724a67696fc 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -238,7 +238,7 @@ static ssize_t ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
dev = cl->dev;
mutex_lock(&dev->device_lock);
- if (cl->state != MEI_FILE_CONNECTED) {
+ if (!mei_cl_is_connected(cl)) {
rets = -ENODEV;
goto out;
}
@@ -474,7 +474,7 @@ int mei_cl_disable_device(struct mei_cl_device *device)
mutex_lock(&dev->device_lock);
- if (cl->state != MEI_FILE_CONNECTED) {
+ if (!mei_cl_is_connected(cl)) {
dev_err(dev->dev, "Already disconnected");
err = 0;
goto out;
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index d6304fb30ccf..43f56e0481ce 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -876,7 +876,7 @@ int mei_cl_connect(struct mei_cl *cl, struct file *file)
mei_secs_to_jiffies(MEI_CL_CONNECT_TIMEOUT));
mutex_lock(&dev->device_lock);
- if (cl->state != MEI_FILE_CONNECTED) {
+ if (!mei_cl_is_connected(cl)) {
cl->state = MEI_FILE_DISCONNECTED;
/* something went really wrong */
if (!cl->status)
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 3f23629759db..3f84d2edcde4 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -110,7 +110,7 @@ int mei_cl_irq_read_msg(struct mei_cl *cl,
goto out;
}
- if (cl->state != MEI_FILE_CONNECTED) {
+ if (!mei_cl_is_connected(cl)) {
cl_dbg(dev, cl, "not connected\n");
cb->status = -ENODEV;
goto out;
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index a1ec45054988..29fa88b6fa17 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -107,7 +107,7 @@ static int mei_release(struct inode *inode, struct file *file)
rets = mei_amthif_release(dev, file);
goto out;
}
- if (cl->state == MEI_FILE_CONNECTED) {
+ if (mei_cl_is_connected(cl)) {
cl->state = MEI_FILE_DISCONNECTING;
cl_dbg(dev, cl, "disconnecting\n");
rets = mei_cl_disconnect(cl);
@@ -309,9 +309,8 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
goto out;
}
- if (cl->state != MEI_FILE_CONNECTED) {
- dev_err(dev->dev, "host client = %d, is not connected to ME client = %d",
- cl->host_client_id, cl->me_client_id);
+ if (!mei_cl_is_connected(cl)) {
+ cl_err(dev, cl, "is not connected");
rets = -ENODEV;
goto out;
}
@@ -418,7 +417,7 @@ static int mei_ioctl_connect_client(struct file *file,
*/
if (uuid_le_cmp(data->in_client_uuid, mei_amthif_guid) == 0) {
dev_dbg(dev->dev, "FW Client is amthi\n");
- if (dev->iamthif_cl.state != MEI_FILE_CONNECTED) {
+ if (!mei_cl_is_connected(&dev->iamthif_cl)) {
rets = -ENODEV;
goto end;
}
@@ -554,7 +553,9 @@ static unsigned int mei_poll(struct file *file, poll_table *wait)
mutex_lock(&dev->device_lock);
- if (!mei_cl_is_connected(cl)) {
+
+ if (dev->dev_state != MEI_DEV_ENABLED ||
+ !mei_cl_is_connected(cl)) {
mask = POLLERR;
goto out;
}
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index ac1e6235692d..2725f865c3d6 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -160,9 +160,10 @@ int mei_wd_send(struct mei_device *dev)
*/
int mei_wd_stop(struct mei_device *dev)
{
+ struct mei_cl *cl = &dev->wd_cl;
int ret;
- if (dev->wd_cl.state != MEI_FILE_CONNECTED ||
+ if (!mei_cl_is_connected(cl) ||
dev->wd_state != MEI_WD_RUNNING)
return 0;
@@ -170,7 +171,7 @@ int mei_wd_stop(struct mei_device *dev)
dev->wd_state = MEI_WD_STOPPING;
- ret = mei_cl_flow_ctrl_creds(&dev->wd_cl);
+ ret = mei_cl_flow_ctrl_creds(cl);
if (ret < 0)
goto err;
@@ -211,13 +212,16 @@ err:
*/
static int mei_wd_ops_start(struct watchdog_device *wd_dev)
{
- int err = -ENODEV;
struct mei_device *dev;
+ struct mei_cl *cl;
+ int err = -ENODEV;
dev = watchdog_get_drvdata(wd_dev);
if (!dev)
return -ENODEV;
+ cl = &dev->wd_cl;
+
mutex_lock(&dev->device_lock);
if (dev->dev_state != MEI_DEV_ENABLED) {
@@ -226,8 +230,8 @@ static int mei_wd_ops_start(struct watchdog_device *wd_dev)
goto end_unlock;
}
- if (dev->wd_cl.state != MEI_FILE_CONNECTED) {
- dev_dbg(dev->dev, "MEI Driver is not connected to Watchdog Client\n");
+ if (!mei_cl_is_connected(cl)) {
+ cl_dbg(dev, cl, "MEI Driver is not connected to Watchdog Client\n");
goto end_unlock;
}
@@ -282,8 +286,8 @@ static int mei_wd_ops_ping(struct watchdog_device *wd_dev)
mutex_lock(&dev->device_lock);
- if (cl->state != MEI_FILE_CONNECTED) {
- dev_err(dev->dev, "wd: not connected.\n");
+ if (!mei_cl_is_connected(cl)) {
+ cl_err(dev, cl, "wd: not connected.\n");
ret = -ENODEV;
goto end;
}
--
1.9.3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists