[media] v4l2-ctrls: queryctrl shouldn't attempt to replace V4L2_CID_PRIVATE_BASE IDs

When queryctrl is called with a V4L2_CID_PRIVATE_BASE control ID, then
currently it is replaced by the real internal ID. This is not according to
the spec so keep the V4L2_CID_PRIVATE_BASE ID in this case.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c
index 22a9a72..0125143 100644 (file)
--- a/drivers/media/video/v4l2-ctrls.c
+++ b/drivers/media/video/v4l2-ctrls.c
@@ -1344,7 +1344,10 @@ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc)
 
        ctrl = ref->ctrl;
        memset(qc, 0, sizeof(*qc));
-       qc->id = ctrl->id;
+       if (id >= V4L2_CID_PRIVATE_BASE)
+               qc->id = id;
+       else
+               qc->id = ctrl->id;
        strlcpy(qc->name, ctrl->name, sizeof(qc->name));
        qc->minimum = ctrl->minimum;
        qc->maximum = ctrl->maximum;