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Date: Thu, 01 May 2014 08:15:44 -0700 From: John Fastabend <john.fastabend@...il.com> To: edumazet@...gle.com, vtlam@...gle.com Cc: netdev@...r.kernel.org Subject: [net PATCH] net: sched: lock imbalance in hhf qdisc hhf_change() takes the sch_tree_lock and releases it but misses the error cases. Fix the missed case here. Signed-off-by: John Fastabend <john.r.fastabend@...el.com> --- net/sched/sch_hhf.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/sched/sch_hhf.c b/net/sched/sch_hhf.c index edee03d..1803f89 100644 --- a/net/sched/sch_hhf.c +++ b/net/sched/sch_hhf.c @@ -565,8 +565,10 @@ static int hhf_change(struct Qdisc *sch, struct nlattr *opt) new_hhf_non_hh_weight = nla_get_u32(tb[TCA_HHF_NON_HH_WEIGHT]); non_hh_quantum = (u64)new_quantum * new_hhf_non_hh_weight; - if (non_hh_quantum > INT_MAX) + if (non_hh_quantum > INT_MAX) { + sch_tree_unlock(sch); return -EINVAL; + } q->quantum = new_quantum; q->hhf_non_hh_weight = new_hhf_non_hh_weight; -- 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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