From c38c83cb705a41e30a99545ae2314c00e3b9bf1c Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Tue, 27 Mar 2007 14:04:24 -0700 Subject: [NET_SCHED]: sch_htb/sch_hfsc: fix oops in qlen_notify During both HTB and HFSC class deletion the class is removed from the class hash before calling qdisc_tree_decrease_qlen. This makes the ->get operation in qdisc_tree_decrease_qlen fail, so it passes a NULL pointer to ->qlen_notify, causing an oops. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/sched/sch_htb.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net/sched/sch_htb.c') diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 97cbb9a..3c3294d 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1380,15 +1380,15 @@ static int htb_delete(struct Qdisc *sch, unsigned long arg) sch_tree_lock(sch); - /* delete from hash and active; remainder in destroy_class */ - hlist_del_init(&cl->hlist); - if (!cl->level) { qlen = cl->un.leaf.q->q.qlen; qdisc_reset(cl->un.leaf.q); qdisc_tree_decrease_qlen(cl->un.leaf.q, qlen); } + /* delete from hash and active; remainder in destroy_class */ + hlist_del_init(&cl->hlist); + if (cl->prio_activity) htb_deactivate(q, cl); -- cgit v1.1