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media: s3c-camif: fix return code for the polling routine 

All poll handlers should return a poll flag, and not error codes. So,
instead of returning an error, do the right thing here,
e. g. to return EPOLERR on errors, just like the V4L2 VB2 code.

Solves the following sparse warning:
    drivers/media/platform/s3c-camif/camif-capture.c:604:21: warning: incorrect type in assignment (different base types)
    drivers/media/platform/s3c-camif/camif-capture.c:604:21:    expected restricted __poll_t [usertype] ret
    drivers/media/platform/s3c-camif/camif-capture.c:604:21:    got int

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2018-08-07 09:23:33 -04:00
parent 9de1be6ec0
commit c46aa8491d
1 changed files with 1 additions and 1 deletions
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2
drivers/media/platform/s3c-camif/camif-capture.c
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@ -601,7 +601,7 @@ static __poll_t s3c_camif_poll(struct file *file,
mutex_lock(&camif->lock);
if (vp->owner && vp->owner != file->private_data)
ret = -EBUSY;
ret = EPOLLERR;
else
ret = vb2_poll(&vp->vb_queue, file, wait);