tree df6d84edf83f7c9e5f64a3d055ef22d1bab9a9a3
parent feff9ab2e7fa773b6a3965f77375fe89f7fd85cf
author Hans Schillstrom <hans@schillstrom.com> 1393502278 +0100
committer David S. Miller <davem@davemloft.net> 1393543646 -0500

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>