Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d9030f573031244dcffee026cc5e7e2f96f972ce
Commit: d9030f573031244dcffee026cc5e7e2f96f972ce
Parent: 3ce54450461bad18bbe1f9f5aa3ecd2f8e8d1235
Author: Gregor Jasny <[EMAIL PROTECTED]>
AuthorDate: Sun Jan 6 11:15:54 2008 -0300
Committer: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
CommitDate: Mon Jan 7 06:12:57 2008 -0200
V4L/DVB (6944a): Fix Regression VIDIOCGMBUF ioctl hangs on bttv driver
Fix bttv VIDIOCGMBUF locking like done in commit
820eacd84cff23b76693f4be1e28feb672f4488f.
Signed-off-by: Gregor Jasny <[EMAIL PROTECTED]>
Signed-off-by: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
---
drivers/media/video/bt8xx/bttv-driver.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/drivers/media/video/bt8xx/bttv-driver.c
b/drivers/media/video/bt8xx/bttv-driver.c
index c02d92d..581a3c9 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -3063,11 +3063,10 @@ static int bttv_do_ioctl(struct inode *inode, struct
file *file,
struct video_mbuf *mbuf = arg;
unsigned int i;
- mutex_lock(&fh->cap.lock);
retval = videobuf_mmap_setup(&fh->cap,gbuffers,gbufsize,
V4L2_MEMORY_MMAP);
if (retval < 0)
- goto fh_unlock_and_return;
+ return retval;
gbuffers = retval;
memset(mbuf,0,sizeof(*mbuf));
@@ -3075,7 +3074,6 @@ static int bttv_do_ioctl(struct inode *inode, struct file
*file,
mbuf->size = gbuffers * gbufsize;
for (i = 0; i < gbuffers; i++)
mbuf->offsets[i] = i * gbufsize;
- mutex_unlock(&fh->cap.lock);
return 0;
}
case VIDIOCMCAPTURE:
-
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