linux-kernel - Re: [PATCH 12/25] HID: sony: fix error return code

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Message-ID: <alpine.LNX.2.00.1401021351000.14951@pobox.suse.cz>
Date:	Thu, 2 Jan 2014 13:51:10 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Julia Lawall <Julia.Lawall@...6.fr>
cc:	kernel-janitors@...r.kernel.org, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 12/25] HID: sony: fix error return code

On Sun, 29 Dec 2013, Julia Lawall wrote:

> From: Julia Lawall <Julia.Lawall@...6.fr>
> 
> Currently the return variable ret is always 0.  Set it to other values in
> error cases, as used in the direct return.
> 
> 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@...6.fr>

Applied, thanks.

-- 
Jiri Kosina
SUSE Labs
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