linux-kernel - Re: [PATCH 6/6] dmaengine: ste

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Message-ID: <CACRpkdaobn4Zp8KYM-wA1L_uL8CHZW6K6yNb3dE=hSuHcxj6+w@mail.gmail.com>
Date:	Fri, 28 Nov 2014 12:57:57 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	kernel-janitors@...r.kernel.org, Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>, dmaengine@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 6/6] dmaengine: ste_dma40: fix error return code

On Sat, Nov 22, 2014 at 3:39 PM, Julia Lawall <Julia.Lawall@...6.fr> wrote:

> From: Julia Lawall <Julia.Lawall@...6.fr>
>
> 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>

Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij
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