media: vidioc-queryctrl.rst: fix error code
authorHans Verkuil <hverkuil-cisco@xs4all.nl>
Wed, 15 Jan 2020 17:32:54 +0000 (18:32 +0100)
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Mon, 24 Feb 2020 15:14:06 +0000 (16:14 +0100)
commit25f98947ced09b3528f52c983960847a31a0b014
tree8500dba083ee9b0dc6015d278a8abb378bf91e30
parent536f561d871c5781bc33d26d415685211b94032e
media: vidioc-queryctrl.rst: fix error code

An attempt to get a BUTTON control returns EACCES, not EINVAL.

BUTTON controls have V4L2_CTRL_FLAG_WRITE_ONLY set, and the documentation
for that flag correctly says that getting a write-only control returns
EACCES. It's the description of the BUTTON type that's wrong, so fix
that so they are consistent.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Documentation/media/uapi/v4l/vidioc-queryctrl.rst