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netns: fix unbalanced spin_lock on error

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Unlock was missing on error path.

Fixes: 95f38411df05 ("netns: use a spin_lock to protect nsid management")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel 2015-05-13 13:43:09 +02:00 committed by David S. Miller
parent ef7f3a5c71
commit 0c58a2db91
1 changed files with 1 additions and 0 deletions
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net/core/net_namespace.c
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@ -565,6 +565,7 @@ static int rtnl_net_newid(struct sk_buff *skb, struct nlmsghdr *nlh)
spin_lock_irqsave(&nsid_lock, flags);
if (__peernet2id(net, peer) >= 0) {
spin_unlock_irqrestore(&nsid_lock, flags);
err = -EEXIST;
goto out;
}