From 903b33e0292465ebe9705a70084bf9ad06a8a2a5 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@avionic-design.de>
Date: Mon, 21 Jan 2013 11:08:57 +0100
Subject: [PATCH] amba: 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>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/amba/tegra-ahb.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/amba/tegra-ahb.c b/drivers/amba/tegra-ahb.c
index 536c166f4253..ab92785f54dc 100644
--- a/drivers/amba/tegra-ahb.c
+++ b/drivers/amba/tegra-ahb.c
@@ -20,6 +20,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -257,9 +258,9 @@ static int tegra_ahb_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res)
 		return -ENODEV;
-	ahb->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!ahb->regs)
-		return -EBUSY;
+	ahb->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ahb->regs))
+		return PTR_ERR(ahb->regs);
 
 	ahb->dev = &pdev->dev;
 	platform_set_drvdata(pdev, ahb);
-- 
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