diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index be7cd140b2a381492889bfab3437d01b72d2e178..b06cc5e504127b997a0beab4a81d0a471e215f03 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1831,6 +1831,8 @@ static void tc_bind_tclass(struct Qdisc *q, u32 portid, u32 clid,
 	cl = cops->find(q, portid);
 	if (!cl)
 		return;
+	if (!cops->tcf_block)
+		return;
 	block = cops->tcf_block(q, cl, NULL);
 	if (!block)
 		return;