drivers/pinctrl: 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: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinctrl-rockchip.c

@@ -1270,11 +1270,6 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
 	info->dev = dev;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "cannot find IO resource\n");
-		return -ENOENT;
-	}
-
 	info->reg_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(info->reg_base))
 		return PTR_ERR(info->reg_base);

drivers/pinctrl/pinctrl-u300.c

@@ -1075,9 +1075,6 @@ static int u300_pmx_probe(struct platform_device *pdev)
 	upmx->dev = &pdev->dev;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENOENT;
-
 	upmx->virtbase = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(upmx->virtbase))
 		return PTR_ERR(upmx->virtbase);