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-rw-r--r--net/sched/sch_generic.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 8c01e023f02e..87e48a4e1051 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -179,6 +179,7 @@ requeue:
netif_schedule(dev);
return 1;
}
+ BUG_ON((int) q->q.qlen < 0);
return q->q.qlen;
}
@@ -539,6 +540,10 @@ void dev_activate(struct net_device *dev)
write_unlock_bh(&qdisc_tree_lock);
}
+ if (!netif_carrier_ok(dev))
+ /* Delay activation until next carrier-on event */
+ return;
+
spin_lock_bh(&dev->queue_lock);
rcu_assign_pointer(dev->qdisc, dev->qdisc_sleeping);
if (dev->qdisc != &noqueue_qdisc) {