linux-kernel - [PATCH 15/22] backlight: lm3533_bl: use devm_backlight_device

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Date:	Tue, 24 Sep 2013 18:16:47 +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 15/22] backlight: lm3533_bl: use
 devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/video/backlight/lm3533_bl.c |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c
index 93eea65..187d1c2 100644
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c
@@ -313,8 +313,9 @@ static int lm3533_bl_probe(struct platform_device *pdev)
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = LM3533_BL_MAX_BRIGHTNESS;
 	props.brightness = pdata->default_brightness;
-	bd = backlight_device_register(pdata->name, pdev->dev.parent, bl,
-						&lm3533_bl_ops, &props);
+	bd = devm_backlight_device_register(&pdev->dev, pdata->name,
+					pdev->dev.parent, bl, &lm3533_bl_ops,
+					&props);
 	if (IS_ERR(bd)) {
 		dev_err(&pdev->dev, "failed to register backlight device\n");
 		return PTR_ERR(bd);
@@ -328,7 +329,7 @@ static int lm3533_bl_probe(struct platform_device *pdev)
 	ret = sysfs_create_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to create sysfs attributes\n");
-		goto err_unregister;
+		return ret;
 	}
 
 	backlight_update_status(bd);
@@ -345,8 +346,6 @@ static int lm3533_bl_probe(struct platform_device *pdev)
 
 err_sysfs_remove:
 	sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
-err_unregister:
-	backlight_device_unregister(bd);
 
 	return ret;
 }
@@ -363,7 +362,6 @@ static int lm3533_bl_remove(struct platform_device *pdev)
 
 	lm3533_ctrlbank_disable(&bl->cb);
 	sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
-	backlight_device_unregister(bd);
 
 	return 0;
 }
-- 
1.7.10.4


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