From: Richard Laing <richard.laing@alliedtelesis.co.nz>
Date: Thu, 3 Sep 2015 01:52:31 +0000 (+1200)
Subject: net/ipv6: Correct PIM6 mrt_lock handling
X-Git-Tag: v3.2.72~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea43243cfc86b7dbecdd23d2533c1a257390365d;p=pandora-kernel.git

net/ipv6: Correct PIM6 mrt_lock handling

[ Upstream commit 25b4a44c19c83d98e8c0807a7ede07c1f28eab8b ]

In the IPv6 multicast routing code the mrt_lock was not being released
correctly in the MFC iterator, as a result adding or deleting a MIF would
cause a hang because the mrt_lock could not be acquired.

This fix is a copy of the code for the IPv4 case and ensures that the lock
is released correctly.

Signed-off-by: Richard Laing <richard.laing@alliedtelesis.co.nz>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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