1 files changed, 2 insertions, 0 deletions

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index c6deb74e3d2f..22bc6fc48311 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -301,6 +301,8 @@ struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
 {
         struct Qdisc *q;
 
+        if (!handle)
+                return NULL;
         q = qdisc_match_from_root(dev->qdisc, handle);
         if (q)
                 goto out;