linux-kernel - Re: [PATCH 16/16] NFC: pn533: fix error return code

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Message-ID: <20150405232309.GC12567@ribalta.home>
Date:	Mon, 6 Apr 2015 01:23:09 +0200
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	Lauro Ramos Venancio <lauro.venancio@...nbossa.org>,
	kernel-janitors@...r.kernel.org,
	Aloisio Almeida Jr <aloisio.almeida@...nbossa.org>,
	linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 16/16] NFC: pn533: fix error return code

Hi Julia,

On Sun, Apr 05, 2015 at 02:06:36PM +0200, Julia Lawall 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>
> 
> ---
>  drivers/nfc/pn533.c |    4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
Applied, thanks.

Cheers,
Samuel.
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