From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 19 Mar 2010 04:16:45 +0000 (-0700)
Subject: net: Potential null skb->dev dereference
X-Git-Tag: v2.6.34-rc3~84^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0641e4fbf2f824faee00ea74c459a088d94905fd;p=pandora-kernel.git

net: Potential null skb->dev dereference

When doing "ifenslave -d bond0 eth0", there is chance to get NULL
dereference in netif_receive_skb(), because dev->master suddenly becomes
NULL after we tested it.

We should use ACCESS_ONCE() to avoid this (or rcu_dereference())

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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