pwm: Convert to devm_ioremap_resource()

Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c
index b0ba2d4..f9de9b2 100644
--- a/drivers/pwm/pwm-vt8500.c
+++ b/drivers/pwm/pwm-vt8500.c
@@ -178,9 +178,9 @@
 		return -ENODEV;
 	}
 
-	chip->base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!chip->base)
-		return -EADDRNOTAVAIL;
+	chip->base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(chip->base))
+		return PTR_ERR(chip->base);
 
 	ret = clk_prepare(chip->clk);
 	if (ret < 0) {