linux-kernel - Re: [PATCH 1/4] drivers/mmc/host/dw

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Message-ID: <CAFbHwiT13SYbaeKiboXrESoSW40bJx1ogKQwCoc+RnsctUbbfw@mail.gmail.com>
Date:	Mon, 17 Sep 2012 10:18:56 +0100
From:	Will Newton <will.newton@...il.com>
To:	Peter Senna Tschudin <peter.senna@...il.com>
Cc:	cjb@...top.org, tgih.jun@...sung.com, jh80.chung@...sung.com,
	kyungmin.park@...sung.com, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 1/4] drivers/mmc/host/dw_mmc.c: fix error return code

On Mon, Sep 17, 2012 at 9:15 AM, Peter Senna Tschudin
<peter.senna@...il.com> wrote:
> From: Peter Senna Tschudin <peter.senna@...il.com>
>
> Convert a nonnegative error return code to a negative one, as returned
> elsewhere in the function.
>
> 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: Peter Senna Tschudin <peter.senna@...il.com>

Acked-by: Will Newton <will.newton@...tec.com>
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