Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 27/29] drivers/ata/sata_rcar.c: simplify use of devm_ioremap_resource | Date | Wed, 14 Aug 2013 11:11:31 +0200 |
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From: Julia Lawall <Julia.Lawall@lip6.fr>
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>
--- drivers/ata/sata_rcar.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c index 8108eb0..c2d95e9 100644 --- a/drivers/ata/sata_rcar.c +++ b/drivers/ata/sata_rcar.c @@ -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);
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