From 036d6a673fa0a2e2c5b72a3b1d1b86114c1711c0 Mon Sep 17 00:00:00 2001 From: Jarek Poplawski Date: Sun, 13 Sep 2009 22:35:44 +0000 Subject: [PATCH] pkt_sched: Fix qdisc_graft WRT ingress qdisc After the recent mq change using ingress qdisc overwrites dev->qdisc; there is also a wrong old qdisc pointer passed to notify_and_destroy. Signed-off-by: Jarek Poplawski Signed-off-by: David S. Miller --- net/sched/sch_api.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 692d9a41cd2..c6e4063f698 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -693,13 +693,18 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent, if (new && i > 0) atomic_inc(&new->refcnt); - qdisc_destroy(old); + if (!ingress) + qdisc_destroy(old); } - notify_and_destroy(skb, n, classid, dev->qdisc, new); - if (new && !new->ops->attach) - atomic_inc(&new->refcnt); - dev->qdisc = new ? : &noop_qdisc; + if (!ingress) { + notify_and_destroy(skb, n, classid, dev->qdisc, new); + if (new && !new->ops->attach) + atomic_inc(&new->refcnt); + dev->qdisc = new ? : &noop_qdisc; + } else { + notify_and_destroy(skb, n, classid, old, new); + } if (dev->flags & IFF_UP) dev_activate(dev); -- 2.41.0