linux-kernel - Re: [PATCH 7/7] net/netfilter/nf_conntrack

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Message-ID: <20120830013500.GD8878@1984>
Date:	Thu, 30 Aug 2012 03:35:01 +0200
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	kernel-janitors@...r.kernel.org, Patrick McHardy <kaber@...sh.net>,
	"David S. Miller" <davem@...emloft.net>,
	netfilter-devel@...r.kernel.org, netfilter@...r.kernel.org,
	coreteam@...filter.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] net/netfilter/nf_conntrack_netlink.c: fix error
 return code

On Wed, Aug 29, 2012 at 06:49:16PM +0200, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@...6.fr>
> 
> Initialize return variable before exiting on an error path.
> 
> 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>

Applied, thanks.
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