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Date: Wed, 13 Aug 2008 22:13:00 +0200 From: Jarek Poplawski <jarkao2@...il.com> To: David Miller <davem@...emloft.net> Cc: Patrick McHardy <kaber@...sh.net>, netdev@...r.kernel.org Subject: [PATCH] pkt_sched: Fix oops in htb_delete. pkt_sched: Fix oops in htb_delete. Recent changes introduced a bug in htb_delete(): cl->parent->children counter update misses checking cl->parent for NULL, which is used for root classes, so deleting them causes an oops. Signed-off-by: Jarek Poplawski <jarkao2@...il.com> --- net/sched/sch_htb.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index be35422..6febd24 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1279,7 +1279,8 @@ static int htb_delete(struct Qdisc *sch, unsigned long arg) /* delete from hash and active; remainder in destroy_class */ qdisc_class_hash_remove(&q->clhash, &cl->common); - cl->parent->children--; + if (cl->parent) + cl->parent->children--; if (cl->prio_activity) htb_deactivate(q, cl); -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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