From: Dan Carpenter <error27@gmail.com>
To: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Devin Heitmueller <dheitmueller@kernellabs.com>,
linux-media@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] em28xx: remove unneeded null checks
Date: Sat, 22 May 2010 19:53:27 +0000 [thread overview]
Message-ID: <20100522194854.GH22515@bicker> (raw)
The "dev" variable is used as a list cursor in a list_for_each_entry()
loop and can never be null here so I removed the check.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index 331e1ca..44c63cb 100644
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -1186,8 +1186,7 @@ int em28xx_register_extension(struct em28xx_ops *ops)
mutex_lock(&em28xx_devlist_mutex);
list_add_tail(&ops->next, &em28xx_extension_devlist);
list_for_each_entry(dev, &em28xx_devlist, devlist) {
- if (dev)
- ops->init(dev);
+ ops->init(dev);
}
printk(KERN_INFO "Em28xx: Initialized (%s) extension\n", ops->name);
mutex_unlock(&em28xx_devlist_mutex);
@@ -1201,10 +1200,8 @@ void em28xx_unregister_extension(struct em28xx_ops *ops)
mutex_lock(&em28xx_devlist_mutex);
list_for_each_entry(dev, &em28xx_devlist, devlist) {
- if (dev)
- ops->fini(dev);
+ ops->fini(dev);
}
-
printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name);
list_del(&ops->next);
mutex_unlock(&em28xx_devlist_mutex);
WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <error27@gmail.com>
To: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Devin Heitmueller <dheitmueller@kernellabs.com>,
linux-media@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] em28xx: remove unneeded null checks
Date: Sat, 22 May 2010 21:53:27 +0200 [thread overview]
Message-ID: <20100522194854.GH22515@bicker> (raw)
The "dev" variable is used as a list cursor in a list_for_each_entry()
loop and can never be null here so I removed the check.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index 331e1ca..44c63cb 100644
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -1186,8 +1186,7 @@ int em28xx_register_extension(struct em28xx_ops *ops)
mutex_lock(&em28xx_devlist_mutex);
list_add_tail(&ops->next, &em28xx_extension_devlist);
list_for_each_entry(dev, &em28xx_devlist, devlist) {
- if (dev)
- ops->init(dev);
+ ops->init(dev);
}
printk(KERN_INFO "Em28xx: Initialized (%s) extension\n", ops->name);
mutex_unlock(&em28xx_devlist_mutex);
@@ -1201,10 +1200,8 @@ void em28xx_unregister_extension(struct em28xx_ops *ops)
mutex_lock(&em28xx_devlist_mutex);
list_for_each_entry(dev, &em28xx_devlist, devlist) {
- if (dev)
- ops->fini(dev);
+ ops->fini(dev);
}
-
printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name);
list_del(&ops->next);
mutex_unlock(&em28xx_devlist_mutex);
next reply other threads:[~2010-05-22 19:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-22 19:53 Dan Carpenter [this message]
2010-05-22 19:53 ` [patch] em28xx: remove unneeded null checks Dan Carpenter
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