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media: media-request: return -EINVAL for invalid request_fds

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Instead of returning -ENOENT when a request_fd was not found (VIDIOC_QBUF
and VIDIOC_G/S/TRY_EXT_CTRLS), we now return -EINVAL. This is in line
with what we do when invalid dmabuf fds are passed to e.g. VIDIOC_QBUF.

Also document that EINVAL is returned for invalid m.fd values, we never
documented that.

Signed-off-by: Hans Verkuil <[email protected]>
Reviewed-by: Tomasz Figa <[email protected]>
Acked-by: Sakari Ailus <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Hans Verkuil 2018-08-23 06:14:12 -04:00 • committed by Mauro Carvalho Chehab
commit 34b4147246
5 changed files with 20 additions and 22 deletions
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2
include/media/media-request.h
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@ -153,7 +153,7 @@ void media_request_put(struct media_request *req);
* by the media device.
*
* Return a -EPERM error pointer if requests are not supported
* by this driver. Return -ENOENT if the request was not found.
* by this driver. Return -EINVAL if the request was not found.
* Return the pointer to the request if found: the caller will
* have to call @media_request_put when it finished using the
* request.