From: Linus Lüssing <linus.luessing@ascom.ch>
Date: Sun, 13 Feb 2011 21:13:02 +0000 (+0000)
Subject: batman-adv: Make bat_priv->curr_gw an rcu protected pointer
X-Git-Tag: v2.6.39-rc1~468^2~151^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5d02b3cdfafeb23ab7cf43ef1d2118007370e8d0;p=pandora-kernel.git

batman-adv: Make bat_priv->curr_gw an rcu protected pointer

The rcu protected macros rcu_dereference() and rcu_assign_pointer()
for the bat_priv->curr_gw need to be used, as well as spin/rcu locking.

Otherwise we might end up using a curr_gw pointer pointing to already
freed memory.

Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Linus Lüssing <linus.luessing@ascom.ch>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
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