releases/2.6.27.22/bridge-bad-error-handling-when-adding-invalid-ether-address.patch

From 8866e77e34c013658b231ba3690250c4db05e38d Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Wed, 25 Mar 2009 21:01:47 -0700
Subject: bridge: bad error handling when adding invalid ether address

From: Stephen Hemminger <shemminger@vyatta.com>

[ Upstream commit cda6d377ec6b2ee2e58d563d0bd7eb313e0165df ]

This fixes an crash when empty bond device is added to a bridge.
If an interface with invalid ethernet address (all zero) is added
to a bridge, then bridge code detects it when setting up the forward
databas entry. But the error unwind is broken, the bridge port object
can get freed twice: once when ref count went to zeo, and once by kfree.
Since object is never really accessible, just free it.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 net/bridge/br_if.c |    1 -
 1 file changed, 1 deletion(-)

--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -419,7 +419,6 @@ err2:
 err1:
 	kobject_del(&p->kobj);
 err0:
-	kobject_put(&p->kobj);
 	dev_set_promiscuity(dev, -1);
 put_back:
 	dev_put(dev);