From: Tony Lindgren <tony@atomide.com>
To: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: kernel-janitors@vger.kernel.org,
Russell King <linux@arm.linux.org.uk>,
linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 15/15] arch/arm/mach-omap2/smartreflex.c: add missing iounmap
Date: Thu, 26 Jan 2012 16:37:05 -0800 [thread overview]
Message-ID: <20120127003704.GH29812@atomide.com> (raw)
In-Reply-To: <1326362117-29371-15-git-send-email-Julia.Lawall@lip6.fr>
* Julia Lawall <Julia.Lawall@lip6.fr> [120112 01:23]:
> From: Julia Lawall <Julia.Lawall@lip6.fr>
>
> Add missing iounmap in error handling code, in a case where the function
> already preforms iounmap on some other execution path.
Thanks I'll apply this into omap fixes branch.
Regards,
Tony
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> expression e;
> statement S,S1;
> int ret;
> @@
> e = \(ioremap\|ioremap_nocache\)(...)
> ... when != iounmap(e)
> if (<+...e...+>) S
> ... when any
> when != iounmap(e)
> *if (...)
> { ... when != iounmap(e)
> return ...; }
> ... when any
> iounmap(e);
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
>
> ---
> arch/arm/mach-omap2/smartreflex.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
> index 9dd9345..7e755bb 100644
> --- a/arch/arm/mach-omap2/smartreflex.c
> +++ b/arch/arm/mach-omap2/smartreflex.c
> @@ -897,7 +897,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
> ret = sr_late_init(sr_info);
> if (ret) {
> pr_warning("%s: Error in SR late init\n", __func__);
> - return ret;
> + goto err_iounmap;
> }
> }
>
>
prev parent reply other threads:[~2012-01-27 0:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-12 9:55 [PATCH 15/15] arch/arm/mach-omap2/smartreflex.c: add missing iounmap Julia Lawall
2012-01-27 0:37 ` Tony Lindgren [this message]
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