[PATCH 3/3] backlight: lm3533_bl: use devm_ functions

[Jingoo Han <jg1.han@samsung.com>]

The devm_ functions allocate memory that is released when a driver
detaches. This patch uses devm_kzalloc of these functions.

Cc: Johan Hovold <jhovold@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
---
 drivers/video/backlight/lm3533_bl.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c
index 0148227..9f96a6b 100644
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c
@@ -295,7 +295,7 @@ static int __devinit lm3533_bl_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	bl = kzalloc(sizeof(*bl), GFP_KERNEL);
+	bl = devm_kzalloc(&pdev->dev, sizeof(*bl), GFP_KERNEL);
 	if (!bl) {
 		dev_err(&pdev->dev,
 				"failed to allocate memory for backlight\n");
@@ -318,7 +318,7 @@ static int __devinit lm3533_bl_probe(struct platform_device *pdev)
 	if (IS_ERR(bd)) {
 		dev_err(&pdev->dev, "failed to register backlight device\n");
 		ret = PTR_ERR(bd);
-		goto err_free;
+		goto err_return;
 	}
 
 	bl->bd = bd;
@@ -348,8 +348,7 @@ err_sysfs_remove:
 	sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
 err_unregister:
 	backlight_device_unregister(bd);
-err_free:
-	kfree(bl);
+err_return:
 
 	return ret;
 }
@@ -367,7 +366,6 @@ static int __devexit 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);
-	kfree(bl);
 
 	return 0;
 }
-- 
1.7.1