From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Wed, 29 Aug 2012 06:49:12 +0000 (+0000)
Subject: net: ipv6: fix error return code
X-Git-Tag: v3.6-rc5~20^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48f125ce1cc3ff275f9587b5bf56bf0f90766c7d;p=pandora-kernel.git

net: ipv6: fix error return code

Initialize return variable before exiting on an error path.

The initial initialization of the return variable is also dropped, because
that value is never used.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}

// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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