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authorJulia Lawall <Julia.Lawall@lip6.fr>2013-08-14 11:11:31 +0200
committerTejun Heo <tj@kernel.org>2013-08-14 09:31:36 -0400
commit4a9b7f9f2704405c05b213f8f51e9f7f1fe02d1a (patch)
treefe582e9da382bc4fe1d398232f0285670e723778 /drivers/ata/sata_rcar.c
parent404eafe137f858b21e2b57e3f980057ec8919fea (diff)
downloadop-kernel-dev-4a9b7f9f2704405c05b213f8f51e9f7f1fe02d1a.zip
op-kernel-dev-4a9b7f9f2704405c05b213f8f51e9f7f1fe02d1a.tar.gz
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>
Diffstat (limited to 'drivers/ata/sata_rcar.c')
-rw-r--r--drivers/ata/sata_rcar.c5
1 files changed, 1 insertions, 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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