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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 15:44:51 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 15:44:51 +1000 |
| commit | 43d2548bb2ef7e6d753f91468a746784041e522d (patch) | |
| tree | 77d13fcd48fd998393abb825ec36e2b732684a73 /drivers/media/video/videodev.c | |
| parent | 585583d95c5660973bc0cf64add517b040acd8a4 (diff) | |
| parent | 85082fd7cbe3173198aac0eb5e85ab1edcc6352c (diff) | |
Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build
Manual fixup of:
arch/powerpc/Kconfig
Diffstat (limited to 'drivers/media/video/videodev.c')
| -rw-r--r-- | drivers/media/video/videodev.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index 67a661cf5219..7649860a388d 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c @@ -36,6 +36,7 @@ #include <linux/init.h> #include <linux/kmod.h> #include <linux/slab.h> +#include <linux/smp_lock.h> #include <asm/uaccess.h> #include <asm/system.h> @@ -442,6 +443,7 @@ static int video_open(struct inode *inode, struct file *file) if(minor>=VIDEO_NUM_DEVICES) return -ENODEV; + lock_kernel(); mutex_lock(&videodev_lock); vfl=video_device[minor]; if(vfl==NULL) { @@ -451,6 +453,7 @@ static int video_open(struct inode *inode, struct file *file) vfl=video_device[minor]; if (vfl==NULL) { mutex_unlock(&videodev_lock); + unlock_kernel(); return -ENODEV; } } @@ -464,6 +467,7 @@ static int video_open(struct inode *inode, struct file *file) } fops_put(old_fops); mutex_unlock(&videodev_lock); + unlock_kernel(); return err; } |