Commit 3a76e371 authored Aug 17, 2008 by Jarek Poplawski Committed by David S. Miller Aug 17, 2008

pkt_sched: Grab correct lock in notify_and_destroy().



From: Jarek Poplawski <jarkao2@gmail.com>

When we are destroying non-root qdiscs, we need to lock
the root of the qdisc tree not the the qdisc itself.

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

parent 4335cd2d

net/sched/sch_api.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -638,9 +638,9 @@ static void notify_and_destroy(struct sk_buff skb, struct nlmsghdr n, u32 clid
		qdisc_notify(skb, n, clid, old, new);

		if (old) {
		spin_lock_bh(&old->q.lock);
		sch_tree_lock(old);
		qdisc_destroy(old);
		spin_unlock_bh(&old->q.lock);
		sch_tree_unlock(old);
		}
		}