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net: caif: Add a missing rcu_read_unlock() in caif_flow_cb

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[ Upstream commit 64119e05f7b31e83e2555f6782e6cdc8f81c63f4 ]

Add a missing rcu_read_unlock in the error path

Fixes: c95567c80352 ("caif: added check for potential null return")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
YueHaibing 2018-07-19 10:27:13 +08:00 committed by Greg Kroah-Hartman
parent a10170d94e
commit b970d8a1c2
1 changed files with 3 additions and 1 deletions
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4
net/caif/caif_dev.c
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@ -131,8 +131,10 @@ static void caif_flow_cb(struct sk_buff *skb)
caifd = caif_get(skb->dev);
WARN_ON(caifd == NULL);
if (caifd == NULL)
if (!caifd) {
rcu_read_unlock();
return;
}
caifd_hold(caifd);
rcu_read_unlock();