linux-kernel - Re: [PATCH 11/11] gpio: xlp: fix error return code

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Message-ID: <CACRpkdZQ8E=A5RFsk31y83NFpxB4Yq2gKgaSpzxBMR7cjr5FiQ@mail.gmail.com>
Date:	Wed, 26 Aug 2015 14:50:00 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	kernel-janitors@...r.kernel.org,
	Alexandre Courbot <gnurou@...il.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 11/11] gpio: xlp: fix error return code

On Sun, Aug 23, 2015 at 2:11 AM, Julia Lawall <Julia.Lawall@...6.fr> wrote:

> Return a negative error code on failure.
>
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> identifier ret; expression e1,e2;
> @@
> (
> if (\(ret < 0\|ret != 0\))
>  { ... return ret; }
> |
> ret = 0
> )
> ... when != ret = e1
>     when != &ret
> *if(...)
> {
>   ... when != ret = e2
>       when forall
>  return ret;
> }
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

Patch applied.

Yours,
Linus Walleij
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