diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2018-09-01 07:29:14 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-09-11 09:57:29 -0400 |
| commit | 15cd442e79e2a60a725ee5501e4ffb537698c802 (patch) | |
| tree | 3a4b0356ca704fe66095ffeca6b9dc9a4be8c512 /drivers/media/common/videobuf2/videobuf2-v4l2.c | |
| parent | ffda0b4c2481b2a0faf634abccb1da0d0ba4eddb (diff) | |
| download | linux-15cd442e79e2a60a725ee5501e4ffb537698c802.tar.bz2 | |
media: media-request: EPERM -> EACCES/EBUSY
If requests are not supported by the driver, then return EACCES, not
EPERM.
If you attempt to mix queueing buffers directly and using requests,
then EBUSY is returned instead of EPERM: once a specific queueing mode
has been chosen the queue is 'busy' if you attempt the other mode
(i.e. direct queueing vs via a request).
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/common/videobuf2/videobuf2-v4l2.c')
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c index 2caaabd50532..6831a2eb1859 100644 --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c @@ -381,12 +381,15 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md if (!(b->flags & V4L2_BUF_FLAG_REQUEST_FD)) { if (q->uses_requests) { dprintk(1, "%s: queue uses requests\n", opname); - return -EPERM; + return -EBUSY; } return 0; - } else if (q->uses_qbuf || !q->supports_requests) { + } else if (!q->supports_requests) { + dprintk(1, "%s: queue does not support requests\n", opname); + return -EACCES; + } else if (q->uses_qbuf) { dprintk(1, "%s: queue does not use requests\n", opname); - return -EPERM; + return -EBUSY; } /* |