aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/video/meye.c
diff options
context:
space:
mode:
authorStefani Seibold <stefani@seibold.net>2009-12-21 14:37:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-22 14:17:56 -0800
commit9842c38e917636fa7dc6b88aff17a8f1fd7f0cc0 (patch)
tree71d0b52ddc243743046bba9f774beca9febc393a /drivers/media/video/meye.c
parent7acd72eb85f1c7a15e8b5eb554994949241737f1 (diff)
kfifo: fix warn_unused_result
Fix the "ignoring return value of '...', declared with attribute warn_unused_result" compiler warning in several users of the new kfifo API. It removes the __must_check attribute from kfifo_in() and kfifo_in_locked() which must not necessary performed. Fix the allocation bug in the nozomi driver file, by moving out the kfifo_alloc from the interrupt handler into the probe function. Fix the kfifo_out() and kfifo_out_locked() users to handle a unexpected end of fifo. Signed-off-by: Stefani Seibold <stefani@seibold.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/media/video/meye.c')
-rw-r--r--drivers/media/video/meye.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c
index 884a569d60a2..b421858ccf90 100644
--- a/drivers/media/video/meye.c
+++ b/drivers/media/video/meye.c
@@ -968,8 +968,9 @@ static int meyeioc_sync(struct file *file, void *fh, int *i)
/* fall through */
case MEYE_BUF_DONE:
meye.grab_buffer[*i].state = MEYE_BUF_UNUSED;
- kfifo_out_locked(&meye.doneq, (unsigned char *)&unused,
- sizeof(int), &meye.doneq_lock);
+ if (kfifo_out_locked(&meye.doneq, (unsigned char *)&unused,
+ sizeof(int), &meye.doneq_lock) != sizeof(int))
+ break;
}
*i = meye.grab_buffer[*i].size;
mutex_unlock(&meye.lock);

Privacy Policy