linux-kernel - Re: [PATCH 7/29] dma: mmp: simplify use of devm_ioremap

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Message-ID: <20130814092200.GN32147@intel.com>
Date:	Wed, 14 Aug 2013 14:52:00 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Julia Lawall <Julia.Lawall@...6.fr>
Cc:	kernel-janitors@...r.kernel.org, Dan Williams <djbw@...com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/29] dma: mmp: simplify use of devm_ioremap_resource

On Wed, Aug 14, 2013 at 11:11:11AM +0200, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@...6.fr>
> 
> Remove unneeded error handling on the result of a call to
> platform_get_resource when the value is passed to devm_ioremap_resource.
> 
> A simplified version of the semantic patch that makes this change is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> expression pdev,res,n,e,e1;
> expression ret != 0;
> identifier l;
> @@
> 
> - res = platform_get_resource(pdev, IORESOURCE_MEM, n);
>   ... when != res
> - if (res == NULL) { ... \(goto l;\|return ret;\) }
>   ... when != res
> + res = platform_get_resource(pdev, IORESOURCE_MEM, n);
>   e = devm_ioremap_resource(e1, res);
> // </smpl>
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
Applied, thanks

~Vinod
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