From: Hans Schillstrom <hans@schillstrom.com>
Date: Thu, 27 Feb 2014 11:57:58 +0000 (+0100)
Subject: ipv6: ipv6_find_hdr restore prev functionality
X-Git-Tag: v3.14-rc6~30^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=accfe0e356327da5bd53da8852b93fc22de9b5fc;p=pandora-kernel.git

ipv6: ipv6_find_hdr restore prev functionality

The commit 9195bb8e381d81d5a315f911904cdf0cfcc919b8 ("ipv6: improve
ipv6_find_hdr() to skip empty routing headers") broke ipv6_find_hdr().

When a target is specified like IPPROTO_ICMPV6 ipv6_find_hdr()
returns -ENOENT when it's found, not the header as expected.

A part of IPVS is broken and possible also nft_exthdr_eval().
When target is -1 which it is most cases, it works.

This patch exits the do while loop if the specific header is found
so the nexthdr could be returned as expected.

Reported-by: Art -kwaak- van Breemen <ard@telegraafnet.nl>
Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
CC:Ansis Atteka <aatteka@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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