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| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2019-03-20 17:31:18 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-03-25 20:26:10 +0300 |
| commit | e79c7159d471fa5e818bf9ec13e095e22033c792 (patch) | |
| tree | 344ececbb149b53b0ebb24d4149a26a247440c58 /Documentation/media/uapi/mediactl/request-api.rst | |
| parent | ca0d1bd489a4e4cb0979a84d5b9ed037764d709f (diff) | |
| download | linux-e79c7159d471fa5e818bf9ec13e095e22033c792.tar.xz | |
media: media requests: return EBADR instead of EACCES
If requests are used when they shouldn't, or not used when they should,
then return EBADR (Invalid request descriptor) instead of EACCES.
The reason for this change is that EACCES has more to do with permissions
(not being the owner of the resource), but in this case the request file
descriptor is just wrong for the current mode of the device.
Update the documentation accordingly.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation/media/uapi/mediactl/request-api.rst')
| -rw-r--r-- | Documentation/media/uapi/mediactl/request-api.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/media/uapi/mediactl/request-api.rst b/Documentation/media/uapi/mediactl/request-api.rst index 1ad631e549fe..a74c82d95609 100644 --- a/Documentation/media/uapi/mediactl/request-api.rst +++ b/Documentation/media/uapi/mediactl/request-api.rst @@ -93,7 +93,7 @@ A queued request cannot be modified anymore. .. caution:: For :ref:`memory-to-memory devices <mem2mem>` you can use requests only for output buffers, not for capture buffers. Attempting to add a capture buffer - to a request will result in an ``EACCES`` error. + to a request will result in an ``EBADR`` error. If the request contains configurations for multiple entities, individual drivers may synchronize so the requested pipeline's topology is applied before the |