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[media] s5p-tv: fix wait_event_timeout return handling 

event API conformance testing with coccinelle spatches are being
used to locate API usage inconsistencies this triggert with:
./drivers/media/platform/s5p-tv/mixer_reg.c:364
        incorrect check for negative return

Return type of wait_event_timeout is signed long not int and the
return type is >=0 always thus the negative check is unnecessary.
An appropriately named variable of type long is inserted and the
call fixed up aswell as the negative return check dropped.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Nicholas Mc Guire 2015-06-10 06:02:03 -03:00 committed by Mauro Carvalho Chehab
parent 264d1cf86c
commit 4f50efadcb
1 changed files with 5 additions and 7 deletions
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12
drivers/media/platform/s5p-tv/mixer_reg.c
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@ -357,17 +357,15 @@ void mxr_reg_streamoff(struct mxr_device *mdev)
int mxr_reg_wait4vsync(struct mxr_device *mdev)
{
int ret;
long time_left;
clear_bit(MXR_EVENT_VSYNC, &mdev->event_flags);
/* TODO: consider adding interruptible */
ret = wait_event_timeout(mdev->event_queue,
test_bit(MXR_EVENT_VSYNC, &mdev->event_flags),
msecs_to_jiffies(1000));
if (ret > 0)
time_left = wait_event_timeout(mdev->event_queue,
test_bit(MXR_EVENT_VSYNC, &mdev->event_flags),
msecs_to_jiffies(1000));
if (time_left > 0)
return 0;
if (ret < 0)
return ret;
mxr_warn(mdev, "no vsync detected - timeout\n");
return -ETIME;
}