pkt_sched: Fix qdisc config when link is down.

Bug reported by Stephen Hemminger.

We need to fetch the root from ->qdisc_sleeping not ->qdisc.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 4 deletions

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 83b23b55ce36..ba1d121f3127 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -189,7 +189,7 @@ struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
 
         for (i = 0; i < dev->num_tx_queues; i++) {
                 struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
-                struct Qdisc *q, *txq_root = txq->qdisc;
+                struct Qdisc *q, *txq_root = txq->qdisc_sleeping;
 
                 if (!(txq_root->flags & TCQ_F_BUILTIN) &&
                     txq_root->handle == handle)
@@ -793,7 +793,7 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue,
                         }
                 }
                 if ((parent != TC_H_ROOT) && !(sch->flags & TCQ_F_INGRESS))
-                        list_add_tail(&sch->list, &dev_queue->qdisc->list);
+                        list_add_tail(&sch->list, &dev_queue->qdisc_sleeping->list);
 
                 return sch;
         }
@@ -1236,11 +1236,11 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb)
                 q_idx = 0;
 
                 dev_queue = netdev_get_tx_queue(dev, 0);
-                if (tc_dump_qdisc_root(dev_queue->qdisc, skb, cb, &q_idx, s_q_idx) < 0)
+                if (tc_dump_qdisc_root(dev_queue->qdisc_sleeping, skb, cb, &q_idx, s_q_idx) < 0)
                         goto done;
 
                 dev_queue = &dev->rx_queue;
-                if (tc_dump_qdisc_root(dev_queue->qdisc, skb, cb, &q_idx, s_q_idx) < 0)
+                if (tc_dump_qdisc_root(dev_queue->qdisc_sleeping, skb, cb, &q_idx, s_q_idx) < 0)
                         goto done;
 
 cont: