1 files changed, 6 insertions, 4 deletions

diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index d44c868cb537..6749e2f540d0 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -167,15 +167,17 @@ static void mqprio_attach(struct Qdisc *sch)
 {
         struct net_device *dev = qdisc_dev(sch);
         struct mqprio_sched *priv = qdisc_priv(sch);
-        struct Qdisc *qdisc;
+        struct Qdisc *qdisc, *old;
         unsigned int ntx;
 
         /* Attach underlying qdisc */
         for (ntx = 0; ntx < dev->num_tx_queues; ntx++) {
                 qdisc = priv->qdiscs[ntx];
-                qdisc = dev_graft_qdisc(qdisc->dev_queue, qdisc);
-                if (qdisc)
-                        qdisc_destroy(qdisc);
+                old = dev_graft_qdisc(qdisc->dev_queue, qdisc);
+                if (old)
+                        qdisc_destroy(old);
+                if (ntx < dev->real_num_tx_queues)
+                        qdisc_list_add(qdisc);
         }
         kfree(priv->qdiscs);
         priv->qdiscs = NULL;