From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 22 Mar 2011 01:18:00 +0000 (-0700)
Subject: net/appletalk: fix atalk_release use after free
X-Git-Tag: v2.6.39-rc1~390^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b20e7bbfc7a15a4182730f0936433145992b4b06;p=pandora-kernel.git

net/appletalk: fix atalk_release use after free

The BKL removal in appletalk introduced a use-after-free problem,
where atalk_destroy_socket frees a sock, but we still release
the socket lock on it.

An easy fix is to take an extra reference on the sock and sock_put
it when returning from atalk_release.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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