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[media] uvcvideo: Return -EACCES when trying to set a read-only control

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Commit ba68c8530a263dc4de440fa10bb20a1c5b9d4ff5 (Partly revert "[media]
uvcvideo: Set error_idx properly for extended controls API failures")
also reverted part of commit 30ecb936cb
("uvcvideo: Return -EACCES when trying to access a read/write-only
control") by mistake. Fix it.

Signed-off-by: Laurent Pinchart <[email protected]>
Acked-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Laurent Pinchart 2012-08-28 18:38:58 -03:00 • committed by Mauro Carvalho Chehab
commit 9bf42300e6
1 changed files with 3 additions and 1 deletions
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4
drivers/media/usb/uvc/uvc_ctrl.c
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@ -1431,8 +1431,10 @@ int uvc_ctrl_set(struct uvc_video_chain *chain,
int ret;
ctrl = uvc_find_control(chain, xctrl->id, &mapping);
if (ctrl == NULL || (ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR) == 0)
if (ctrl == NULL)
return -EINVAL;
if (!(ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR))
return -EACCES;
/* Clamp out of range values. */
switch (mapping->v4l2_type) {