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drivers/ata/sata_rcar.c: 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>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Julia Lawall 2013-08-14 11:11:31 +02:00 committed by Tejun Heo
parent 404eafe137
commit 4a9b7f9f27
1 changed files with 1 additions and 4 deletions
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5
drivers/ata/sata_rcar.c
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@ -778,10 +778,6 @@ static int sata_rcar_probe(struct platform_device *pdev)
int irq;
int ret = 0;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (mem == NULL)
return -EINVAL;
irq = platform_get_irq(pdev, 0);
if (irq <= 0)
return -EINVAL;
@ -807,6 +803,7 @@ static int sata_rcar_probe(struct platform_device *pdev)
host->private_data = priv;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->base = devm_ioremap_resource(&pdev->dev, mem);
if (IS_ERR(priv->base)) {
ret = PTR_ERR(priv->base);