Input: 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.

devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
index 695d237..cb1e8f6 100644
--- a/drivers/input/keyboard/spear-keyboard.c
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -228,11 +228,9 @@
 		kbd->suspended_rate = pdata->suspended_rate;
 	}
 
-	kbd->io_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!kbd->io_base) {
-		dev_err(&pdev->dev, "request-ioremap failed for kbd_region\n");
-		return -ENOMEM;
-	}
+	kbd->io_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(kbd->io_base))
+		return PTR_ERR(kbd->io_base);
 
 	kbd->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(kbd->clk))