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authorMauro Carvalho Chehab <mchehab@infradead.org>2008-08-04 09:28:25 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-08-04 09:28:25 -0300
commite465ad8685774c7c9a2cf71e9d196b7aaa8cae35 (patch)
treeb1f83dd9bf6f9447f4f1491b6974315b5bc99ee9 /linux/drivers/media/video/em28xx/em28xx-video.c
parent4be14b5602f1f21b6e2a436f240a12797888ae48 (diff)
parentc8b5c505811fd4797e0ea35bcc60478d626a0971 (diff)
downloadmediapointer-dvb-s2-e465ad8685774c7c9a2cf71e9d196b7aaa8cae35.tar.gz
mediapointer-dvb-s2-e465ad8685774c7c9a2cf71e9d196b7aaa8cae35.tar.bz2
merge: http://www.linuxtv.org/hg/~hverkuil/v4l-dvb-bkl
From: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'linux/drivers/media/video/em28xx/em28xx-video.c')
-rw-r--r--linux/drivers/media/video/em28xx/em28xx-video.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/linux/drivers/media/video/em28xx/em28xx-video.c b/linux/drivers/media/video/em28xx/em28xx-video.c
index 81d942e39..c9a2d4808 100644
--- a/linux/drivers/media/video/em28xx/em28xx-video.c
+++ b/linux/drivers/media/video/em28xx/em28xx-video.c
@@ -1555,6 +1555,7 @@ 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;
@@ -1570,8 +1571,10 @@ 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);
@@ -1587,6 +1590,7 @@ 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);
@@ -1630,6 +1634,7 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
sizeof(struct em28xx_buffer), fh);
mutex_unlock(&dev->lock);
+ unlock_kernel();
return errCode;
}