mfd: ipaq-micro: Use devm_platform_ioremap_resource() in micro_probe()

Simplify this function implementation by using a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/ipaq-micro.c b/drivers/mfd/ipaq-micro.c
index a1d9be8..e92eeeb 100644
--- a/drivers/mfd/ipaq-micro.c
+++ b/drivers/mfd/ipaq-micro.c
@@ -396,11 +396,7 @@ static int __init micro_probe(struct platform_device *pdev)
 	if (IS_ERR(micro->base))
 		return PTR_ERR(micro->base);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!res)
-		return -EINVAL;
-
-	micro->sdlc = devm_ioremap_resource(&pdev->dev, res);
+	micro->sdlc = devm_platform_ioremap_resource(pdev, 1);
 	if (IS_ERR(micro->sdlc))
 		return PTR_ERR(micro->sdlc);