Hi, On 5-Jun-25 19:52, Ricardo Ribalda wrote: > If the control does not support GET_DEF, the field default_value will be > left uninitialized during queryctrl. > > Fixes: c0efd232929c ("V4L/DVB (8145a): USB Video Class driver") > Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> Thanks, patch looks good to me, Reviewed-by: Hans de Goede <hansg@xxxxxxxxxx> with Laurent's remarks addressed. Regards, Hans > --- > drivers/media/usb/uvc/uvc_ctrl.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c > index 44b6513c526421943bb9841fb53dc5f8e9f93f02..47e8ccc39234d1769384b55539a21df07f3d57c7 100644 > --- a/drivers/media/usb/uvc/uvc_ctrl.c > +++ b/drivers/media/usb/uvc/uvc_ctrl.c > @@ -1497,6 +1497,8 @@ static int __uvc_queryctrl_boundaries(struct uvc_video_chain *chain, > if (ctrl->info.flags & UVC_CTRL_FLAG_GET_DEF) { > v4l2_ctrl->default_value = uvc_mapping_get_s32(mapping, > UVC_GET_DEF, uvc_ctrl_data(ctrl, UVC_CTRL_DATA_DEF)); > + } else { > + v4l2_ctrl->default_value = 0; > } > > switch (mapping->v4l2_type) { >