linux-kernel - [PATCH 01/22] backlight: 88pm860x_bl: use devm_backlight_device

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Message-id: <004701ceb905$03e8da50$0bba8ef0$%han@samsung.com>
Date:	Tue, 24 Sep 2013 18:04:03 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Andrew Morton' <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, 'Richard Purdie' <rpurdie@...ys.net>,
	'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH 01/22] backlight: 88pm860x_bl: use
 devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/video/backlight/88pm860x_bl.c |   16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c
index a84a12a..7db5234 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -243,7 +243,7 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = MAX_BRIGHTNESS;
-	bl = backlight_device_register(name, &pdev->dev, data,
+	bl = devm_backlight_device_register(&pdev->dev, name, &pdev->dev, data,
 					&pm860x_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
@@ -256,21 +256,10 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
 	/* read current backlight */
 	ret = pm860x_backlight_get_brightness(bl);
 	if (ret < 0)
-		goto out_brt;
+		return ret;
 
 	backlight_update_status(bl);
 	return 0;
-out_brt:
-	backlight_device_unregister(bl);
-	return ret;
-}
-
-static int pm860x_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(bl);
-	return 0;
 }
 
 static struct platform_driver pm860x_backlight_driver = {
@@ -279,7 +268,6 @@ static struct platform_driver pm860x_backlight_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= pm860x_backlight_probe,
-	.remove		= pm860x_backlight_remove,
 };
 
 module_platform_driver(pm860x_backlight_driver);
-- 
1.7.10.4


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