From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 29 Apr 2013 22:05:43 +0000 (-0700)
Subject: drivers/video/exynos/exynos_mipi_dsi.c: convert to devm_ioremap_resource()
X-Git-Tag: firefly_0821_release~3680^2~665^2~137
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6637eca322e912bf4e272ab33447bdafea2658e8;p=firefly-linux-kernel-4.4.55.git

drivers/video/exynos/exynos_mipi_dsi.c: 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>
Cc: Donghwa Lee <dh09.lee@samsung.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c
index 3dd43ca2b95f..32e540600f99 100644
--- a/drivers/video/exynos/exynos_mipi_dsi.c
+++ b/drivers/video/exynos/exynos_mipi_dsi.c
@@ -32,6 +32,7 @@
 #include <linux/notifier.h>
 #include <linux/regulator/consumer.h>
 #include <linux/pm_runtime.h>
+#include <linux/err.h>
 
 #include <video/exynos_mipi_dsim.h>
 
@@ -382,10 +383,9 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	dsim->reg_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!dsim->reg_base) {
-		dev_err(&pdev->dev, "failed to remap io region\n");
-		ret = -ENOMEM;
+	dsim->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dsim->reg_base)) {
+		ret = PTR_ERR(dsim->reg_base);
 		goto error;
 	}