diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-video.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 49ab0629702..600b340e355 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -1512,6 +1512,7 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp) struct em28xx_fh *fh; enum v4l2_buf_type fh_type = 0; + lock_kernel(); list_for_each_entry(h, &em28xx_devlist, devlist) { if (h->vdev->minor == minor) { dev = h; @@ -1527,8 +1528,10 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp) dev = h; } } - if (NULL == dev) + if (NULL == dev) { + unlock_kernel(); return -ENODEV; + } em28xx_videodbg("open minor=%d type=%s users=%d\n", minor, v4l2_type_names[fh_type], dev->users); @@ -1537,6 +1540,7 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp) fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); if (!fh) { em28xx_errdev("em28xx-video.c: Out of memory?!\n"); + unlock_kernel(); return -ENOMEM; } mutex_lock(&dev->lock); @@ -1573,6 +1577,7 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp) sizeof(struct em28xx_buffer), fh); mutex_unlock(&dev->lock); + unlock_kernel(); return errCode; } |