linux-kernel - [PATCH 2/2] backlight: max8925: drop devm_kfree of devm

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Date:	Mon, 29 Oct 2012 13:47:15 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Andrew Morton' <akpm@...ux-foundation.org>,
	'LKML' <linux-kernel@...r.kernel.org>
Cc:	'Richard Purdie' <rpurdie@...ys.net>,
	'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH 2/2] backlight: max8925: drop devm_kfree of devm_kzalloc'd data

The devm_kfree function allocates memory that is released
when a driver detaches. Thus, there is no reason to explicitly
call devm_kfree in probe or remove functions.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
Cc: Richard Purdie <rpurdie@...ys.net>
---
 drivers/video/backlight/max8925_bl.c |   11 +++--------
 1 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c
index f72ba54..01e9f7d 100644
--- a/drivers/video/backlight/max8925_bl.c
+++ b/drivers/video/backlight/max8925_bl.c
@@ -120,15 +120,13 @@ static int __devinit max8925_backlight_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_REG, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "No REG resource for mode control!\n");
-		ret = -ENXIO;
-		goto out;
+		return -ENXIO;
 	}
 	data->reg_mode_cntl = res->start;
 	res = platform_get_resource(pdev, IORESOURCE_REG, 1);
 	if (!res) {
 		dev_err(&pdev->dev, "No REG resource for control!\n");
-		ret = -ENXIO;
-		goto out;
+		return -ENXIO;
 	}
 	data->reg_cntl = res->start;
 
@@ -142,8 +140,7 @@ static int __devinit max8925_backlight_probe(struct platform_device *pdev)
 					&max8925_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
-		ret = PTR_ERR(bl);
-		goto out;
+		return PTR_ERR(bl);
 	}
 	bl->props.brightness = MAX_BRIGHTNESS;
 
@@ -166,8 +163,6 @@ static int __devinit max8925_backlight_probe(struct platform_device *pdev)
 	return 0;
 out_brt:
 	backlight_device_unregister(bl);
-out:
-	devm_kfree(&pdev->dev, data);
 	return ret;
 }
 
-- 
1.7.1


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