From: David S. Miller <davem@davemloft.net>
Date: Mon, 5 Dec 2011 18:21:42 +0000 (-0500)
Subject: ipv4: Fix peer validation on cached lookup.
X-Git-Tag: v3.2-rc5~38^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=de398fb8b92eba3447298053a483727bdd5fe37e;p=pandora-kernel.git

ipv4: Fix peer validation on cached lookup.

If ipv4_valdiate_peer() fails during a cached entry lookup,
we'll NULL derer since the loop iterator assumes rth is not
NULL.

Letting this be handled as a failure is just bogus, so just make it
not fail.  If we have trouble getting a non-NULL neighbour for the
redirected gateway, just restore the original gateway and continue.

The very next use of this cached route will try again.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed