linux-kernel - [PATCH 7/8] backlight: platform_lcd: use devm_lcd_device

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Date:	Tue, 24 Sep 2013 18:25:31 +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 7/8] backlight: platform_lcd: use devm_lcd_device_register()

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

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/video/backlight/platform_lcd.c |   20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c
index cc0f067..d01884d 100644
--- a/drivers/video/backlight/platform_lcd.c
+++ b/drivers/video/backlight/platform_lcd.c
@@ -101,30 +101,17 @@ static int platform_lcd_probe(struct platform_device *pdev)
 
 	plcd->us = dev;
 	plcd->pdata = pdata;
-	plcd->lcd = lcd_device_register(dev_name(dev), dev,
-					plcd, &platform_lcd_ops);
+	plcd->lcd = devm_lcd_device_register(&pdev->dev, dev_name(dev), dev,
+						plcd, &platform_lcd_ops);
 	if (IS_ERR(plcd->lcd)) {
 		dev_err(dev, "cannot register lcd device\n");
-		err = PTR_ERR(plcd->lcd);
-		goto err;
+		return PTR_ERR(plcd->lcd);
 	}
 
 	platform_set_drvdata(pdev, plcd);
 	platform_lcd_set_power(plcd->lcd, FB_BLANK_NORMAL);
 
 	return 0;
-
- err:
-	return err;
-}
-
-static int platform_lcd_remove(struct platform_device *pdev)
-{
-	struct platform_lcd *plcd = platform_get_drvdata(pdev);
-
-	lcd_device_unregister(plcd->lcd);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -168,7 +155,6 @@ static struct platform_driver platform_lcd_driver = {
 		.of_match_table = of_match_ptr(platform_lcd_of_match),
 	},
 	.probe		= platform_lcd_probe,
-	.remove		= platform_lcd_remove,
 };
 
 module_platform_driver(platform_lcd_driver);
-- 
1.7.10.4


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