From: Hong Zhiguo <zhiguohong@tencent.com>
Date: Sat, 14 Sep 2013 14:42:27 +0000 (+0800)
Subject: bridge: use br_port_get_rtnl within rtnl lock
X-Git-Tag: v3.12-rc2~14^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1fb1754a8c70d69ab480763c423e0a74369c4a67;p=pandora-kernel.git

bridge: use br_port_get_rtnl within rtnl lock

current br_port_get_rcu is problematic in bridging path
(NULL deref). Change these calls in netlink path first.

Signed-off-by: Hong Zhiguo <zhiguohong@tencent.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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