Re: [PATCH 9/29] drivers/char/hw_random/tx4939-rng.c: simplify useof devm_ioremap_resource

From: Herbert Xu
Date: Wed Aug 14 2013 - 06:50:04 EST


On Wed, Aug 14, 2013 at 11:11:13AM +0200, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> Remove unneeded error handling on the result of a call to
> platform_get_resource when the value is passed to devm_ioremap_resource.
>
> Move the call to platform_get_resource adjacent to the call to
> devm_ioremap_resource to make the connection between them more clear.
>
> 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@xxxxxxx>

Patch applied. Thanks!
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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