patches.renesas/0697-mmc-sh-mmcif-use-devm_-for-ioremap.patch

From 0e550111e1308a62addba2f2708594f41ce3402c Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Wed, 4 Jun 2014 12:42:09 +0100
Subject: mmc: sh-mmcif: use devm_ for ioremap

Start tidying the probe/release code by using devm_ioremap_resource() to
map the IO registers.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 402de61c9ef9aff9990f6629cc7527827db331e0)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/mmc/host/sh_mmcif.c | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index dc9a28a29c18..e25821fe4e9e 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1378,22 +1378,15 @@ static int sh_mmcif_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Get irq error\n");
 		return -ENXIO;
 	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "platform_get_resource error.\n");
-		return -ENXIO;
-	}
-	reg = ioremap(res->start, resource_size(res));
-	if (!reg) {
-		dev_err(&pdev->dev, "ioremap error.\n");
-		return -ENOMEM;
-	}
+	reg = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(reg))
+		return PTR_ERR(reg);
 
 	mmc = mmc_alloc_host(sizeof(struct sh_mmcif_host), &pdev->dev);
-	if (!mmc) {
-		ret = -ENOMEM;
-		goto ealloch;
-	}
+	if (!mmc)
+		return -ENOMEM;
 
 	ret = mmc_of_parse(mmc);
 	if (ret < 0)
@@ -1498,8 +1491,6 @@ eclkget:
 	pm_runtime_disable(&pdev->dev);
 eofparse:
 	mmc_free_host(mmc);
-ealloch:
-	iounmap(reg);
 	return ret;
 }
 
@@ -1524,9 +1515,6 @@ static int sh_mmcif_remove(struct platform_device *pdev)
 	 */
 	cancel_delayed_work_sync(&host->timeout_work);
 
-	if (host->addr)
-		iounmap(host->addr);
-
 	irq[0] = platform_get_irq(pdev, 0);
 	irq[1] = platform_get_irq(pdev, 1);
 
-- 
2.1.2