From 79dc4386aec655ad829f320ab90888bacbc7037b Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgraf@suug.ch>
Date: Tue, 24 Jul 2007 15:32:46 -0700
Subject: [PATCH] [GENETLINK]: Fix race in genl_unregister_mc_groups()

family->mcast_groups is protected by genl_lock so it must
be held while accessing the list in genl_unregister_mc_groups().
Requires adding a non-locking variant of genl_unregister_mc_group().

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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