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qfq: don't leak skb if kzalloc fails 

When we need to create a new aggregate to enqueue the skb we call kzalloc.
If that fails we returned ENOBUFS without freeing the skb.

Spotted during code review.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal 2016-06-08 23:23:01 +02:00 committed by David S. Miller
parent 0a46baaf63
commit 9b15350f0d
1 changed files with 4 additions and 2 deletions
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6
net/sched/sch_qfq.c
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@ -1235,8 +1235,10 @@ static int qfq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
cl->agg->lmax, qdisc_pkt_len(skb), cl->common.classid);
err = qfq_change_agg(sch, cl, cl->agg->class_weight,
qdisc_pkt_len(skb));
if (err)
return err;
if (err) {
cl->qstats.drops++;
return qdisc_drop(skb, sch);
}
}
err = qdisc_enqueue(skb, cl->qdisc);