[PATCH 1/1] video: exynos_mipi_dsi: Convert to devm_ioremap_resource()

[PATCH 1/1] video: exynos_mipi_dsi: Convert to devm_ioremap_resource()

[Sachin Kamat]

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>
---
 drivers/video/exynos/exynos_mipi_dsi.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c
index fac7df6..87cd13b 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>
 
@@ -384,10 +385,9 @@ 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;
 	}
 
-- 
1.7.4.1

Re: [PATCH 1/1] video: exynos_mipi_dsi: Convert to devm_ioremap_resource()

[Thierry Reding]

[-- Attachment #1: Type: text/plain, Size: 693 bytes --]

On Mon, Mar 04, 2013 at 02:10:40PM +0530, Sachin Kamat wrote:
> 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>
> ---
>  drivers/video/exynos/exynos_mipi_dsi.c |    8 ++++----
>  1 files changed, 4 insertions(+), 4 deletions(-)

Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>

[-- Attachment #2: Type: application/pgp-signature, Size: 836 bytes --]