pwm: simplify use of devm_ioremap_resource
authorJulia Lawall <Julia.Lawall@lip6.fr>
Wed, 14 Aug 2013 09:11:25 +0000 (11:11 +0200)
committerThierry Reding <thierry.reding@gmail.com>
Tue, 3 Sep 2013 11:09:16 +0000 (13:09 +0200)
commit88d5a2e6ffaa32e2a09a994872ca10aca07a36e9
tree05783d570a357d15464bc346b4f8458990cc73b6
parent382457e562bbb1ea7d94923e58fcbac9e981ff18
pwm: simplify use of devm_ioremap_resource

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@lip6.fr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
drivers/pwm/pwm-lpc32xx.c
drivers/pwm/pwm-renesas-tpu.c
drivers/pwm/pwm-spear.c