]> Git Repo - linux.git/commitdiff
[media] uvcvideo: Return -EACCES when trying to set a read-only control
authorLaurent Pinchart <[email protected]>
Tue, 28 Aug 2012 21:38:58 +0000 (18:38 -0300)
committerMauro Carvalho Chehab <[email protected]>
Fri, 11 Jan 2013 15:30:01 +0000 (13:30 -0200)
Commit ba68c8530a263dc4de440fa10bb20a1c5b9d4ff5 (Partly revert "[media]
uvcvideo: Set error_idx properly for extended controls API failures")
also reverted part of commit 30ecb936cbcd83e3735625ac63e1b4466546f5fe
("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]>
drivers/media/usb/uvc/uvc_ctrl.c

index 2bb7613ddebbb0590d702416ac9f7c5872ffbbb5..d5baab17a5ef77b6bbeb85f8cf3e2c1b0127b5b7 100644 (file)
@@ -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) {
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