204 static int prepare_ext_ctrls(struct v4l2_ctrl_handler *hdl,  in prepare_ext_ctrls()  argument
241 		ref = find_ref_lock(hdl, id);  in prepare_ext_ctrls()
256 			ref = find_ref_lock(hdl, ctrl->cluster[0]->id);  in prepare_ext_ctrls()
299 	mutex_lock(hdl->lock);  in prepare_ext_ctrls()
327 	mutex_unlock(hdl->lock);  in prepare_ext_ctrls()
336 static int class_check(struct v4l2_ctrl_handler *hdl, u32 which)  in class_check()  argument
341 	return find_ref_lock(hdl, which | 1) ? 0 : -EINVAL;  in class_check()
351 int v4l2_g_ext_ctrls_common(struct v4l2_ctrl_handler *hdl,  in v4l2_g_ext_ctrls_common()  argument
367 	if (!hdl)  in v4l2_g_ext_ctrls_common()
371 		return class_check(hdl, cs->which);  in v4l2_g_ext_ctrls_common()
380 	ret = prepare_ext_ctrls(hdl, cs, helpers, vdev, true);  in v4l2_g_ext_ctrls_common()
450 int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct video_device *vdev,  in v4l2_g_ext_ctrls()  argument
454 		return v4l2_g_ext_ctrls_request(hdl, vdev, mdev, cs);  in v4l2_g_ext_ctrls()
456 	return v4l2_g_ext_ctrls_common(hdl, cs, vdev);  in v4l2_g_ext_ctrls()
515 			     struct v4l2_ctrl_handler *hdl,  in try_set_ext_ctrls_common()  argument
535 	if (!hdl) {  in try_set_ext_ctrls_common()
542 		return class_check(hdl, cs->which);  in try_set_ext_ctrls_common()
550 	ret = prepare_ext_ctrls(hdl, cs, helpers, vdev, false);  in try_set_ext_ctrls_common()
622 						 !hdl->req_obj.req && set, 0);  in try_set_ext_ctrls_common()
623 		if (!ret && hdl->req_obj.req && set) {  in try_set_ext_ctrls_common()
626 					find_ref(hdl, master->cluster[j]->id);  in try_set_ext_ctrls_common()
650 			     struct v4l2_ctrl_handler *hdl,  in try_set_ext_ctrls()  argument
658 		return try_set_ext_ctrls_request(fh, hdl, vdev, mdev, cs, set);  in try_set_ext_ctrls()
660 	ret = try_set_ext_ctrls_common(fh, hdl, cs, vdev, set);  in try_set_ext_ctrls()
669 int v4l2_try_ext_ctrls(struct v4l2_ctrl_handler *hdl,  in v4l2_try_ext_ctrls()  argument
674 	return try_set_ext_ctrls(NULL, hdl, vdev, mdev, cs, false);  in v4l2_try_ext_ctrls()
679 		     struct v4l2_ctrl_handler *hdl,  in v4l2_s_ext_ctrls()  argument
684 	return try_set_ext_ctrls(fh, hdl, vdev, mdev, cs, true);  in v4l2_s_ext_ctrls()
723 int v4l2_g_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *control)  in v4l2_g_ctrl()  argument
725 	struct v4l2_ctrl *ctrl = v4l2_ctrl_find(hdl, control->id);  in v4l2_g_ctrl()
781 int v4l2_s_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl,  in v4l2_s_ctrl()  argument
784 	struct v4l2_ctrl *ctrl = v4l2_ctrl_find(hdl, control->id);  in v4l2_s_ctrl()
940 int v4l2_query_ext_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_query_ext_ctrl *qc)  in v4l2_query_ext_ctrl()  argument
947 	if (!hdl)  in v4l2_query_ext_ctrl()
950 	mutex_lock(hdl->lock);  in v4l2_query_ext_ctrl()
953 	ref = find_ref(hdl, id);  in v4l2_query_ext_ctrl()
955 	if ((qc->id & next_flags) && !list_empty(&hdl->ctrl_refs)) {  in v4l2_query_ext_ctrl()
972 		if (id >= node2id(hdl->ctrl_refs.prev)) {  in v4l2_query_ext_ctrl()
979 			list_for_each_entry_continue(ref, &hdl->ctrl_refs, node) {  in v4l2_query_ext_ctrl()
986 			if (&ref->node == &hdl->ctrl_refs)  in v4l2_query_ext_ctrl()
995 			list_for_each_entry(ref, &hdl->ctrl_refs, node) {  in v4l2_query_ext_ctrl()
1002 			if (&ref->node == &hdl->ctrl_refs)  in v4l2_query_ext_ctrl()
1006 	mutex_unlock(hdl->lock);  in v4l2_query_ext_ctrl()
1037 int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc)  in v4l2_queryctrl()  argument
1042 	rc = v4l2_query_ext_ctrl(hdl, &qec);  in v4l2_queryctrl()
1074 int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm)  in v4l2_querymenu()  argument
1079 	ctrl = v4l2_ctrl_find(hdl, qm->id);  in v4l2_querymenu()