[patch 04/20] nfnetlink_log: fix reference leak

[Greg KH]

-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Patrick McHardy <kaber@xxxxxxxxx>

[NETFILTER]: nfnetlink_log: fix reference leak

Stop reference leaking in nfulnl_log_packet(). If we start a timer we
are already taking another reference.

Signed-off-by: Michal Miroslaw <mirq-linux@xxxxxxxxxxxx>
Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>


---
 net/netfilter/nfnetlink_log.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -720,15 +720,16 @@ nfulnl_log_packet(unsigned int pf,
 		inst->timer.expires = jiffies + (inst->flushtimeout*HZ/100);
 		add_timer(&inst->timer);
 	}
-	spin_unlock_bh(&inst->lock);
 
+unlock_and_release:
+	spin_unlock_bh(&inst->lock);
+	instance_put(inst);
 	return;
 
 alloc_failure:
-	spin_unlock_bh(&inst->lock);
-	instance_put(inst);
 	UDEBUG("error allocating skb\n");
 	/* FIXME: statistics */
+	goto unlock_and_release;
 }
 
 static int

-- 
-
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