From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 18 Mar 2013 04:30:05 +0000 (-0700)
Subject: Input: tegra-kbc - convert to devm_ioremap_resource()
X-Git-Tag: firefly_0821_release~176^2~541^2~278^2~29
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ba52a7fc434bea7c4a5d0ac7c10bf131f5ac60e2;p=firefly-linux-kernel-4.4.55.git

Input: tegra-kbc - convert to devm_ioremap_resource()

Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() 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: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---

diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index 0e138ebcc768..68b2b65024d6 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -31,6 +31,7 @@
 #include <linux/slab.h>
 #include <linux/input/matrix_keypad.h>
 #include <linux/clk/tegra.h>
+#include <linux/err.h>
 
 #define KBC_MAX_GPIO	24
 #define KBC_MAX_KPENT	8
@@ -608,11 +609,9 @@ static int tegra_kbc_probe(struct platform_device *pdev)
 
 	setup_timer(&kbc->timer, tegra_kbc_keypress_timer, (unsigned long)kbc);
 
-	kbc->mmio = devm_request_and_ioremap(&pdev->dev, res);
-	if (!kbc->mmio) {
-		dev_err(&pdev->dev, "Cannot request memregion/iomap address\n");
-		return -EBUSY;
-	}
+	kbc->mmio = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(kbc->mmio))
+		return PTR_ERR(kbc->mmio);
 
 	kbc->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(kbc->clk)) {