1 files changed, 2 insertions, 0 deletions

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 04faee7ccbce..1047825d9f48 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1920,6 +1920,8 @@ 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;