drivers/pinctrl/spear: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/spear/pinctrl-plgpio.c

@@ -528,18 +528,13 @@ static int plgpio_probe(struct platform_device *pdev)
 	struct resource *res;
 	int ret, irq, i;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "invalid IORESOURCE_MEM\n");
-		return -EBUSY;
-	}
-
 	plgpio = devm_kzalloc(&pdev->dev, sizeof(*plgpio), GFP_KERNEL);
 	if (!plgpio) {
 		dev_err(&pdev->dev, "memory allocation fail\n");
 		return -ENOMEM;
 	}
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	plgpio->base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(plgpio->base))
 		return PTR_ERR(plgpio->base);