pkt_sched: Fix locking in shutdown_scheduler_queue()



Qdisc locks need to be held with BH disabled.

Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent f867e6af

net/sched/sch_generic.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -736,9 +736,9 @@ static void shutdown_scheduler_queue(struct net_device *dev,
		dev_queue->qdisc = qdisc_default;
		dev_queue->qdisc_sleeping = qdisc_default;

		spin_lock(root_lock);
		spin_lock_bh(root_lock);
		qdisc_destroy(qdisc);
		spin_unlock(root_lock);
		spin_unlock_bh(root_lock);
		}
		}