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packet: fix possible dev refcnt leak when bind fail
If bind is fail when bind is called after set PACKET_FANOUT sock option, the dev refcnt will leak. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -2448,8 +2448,12 @@ static int packet_do_bind(struct sock *sk, struct net_device *dev, __be16 protoc
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{
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{
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struct packet_sock *po = pkt_sk(sk);
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struct packet_sock *po = pkt_sk(sk);
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if (po->fanout)
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if (po->fanout) {
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if (dev)
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dev_put(dev);
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return -EINVAL;
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return -EINVAL;
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}
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lock_sock(sk);
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lock_sock(sk);
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