From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Wed, 19 Sep 2012 19:25:34 +0000 (+0000)
Subject: ipv6: release reference of ip6_null_entry's dst entry in __ip6_del_rt
X-Git-Tag: v3.2.31~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=242582dfc34fb64481d6466cbf816768356d2494;p=pandora-kernel.git

ipv6: release reference of ip6_null_entry's dst entry in __ip6_del_rt

[ Upstream commit 6825a26c2dc21eb4f8df9c06d3786ddec97cf53b ]

as we hold dst_entry before we call __ip6_del_rt,
so we should alse call dst_release not only return
-ENOENT when the rt6_info is ip6_null_entry.

and we already hold the dst entry, so I think it's
safe to call dst_release out of the write-read lock.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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