linux-kernel - [PATCH 06/14] power: ds2780_battery: use devm

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Date:	Mon, 11 Mar 2013 15:33:05 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Anton Vorontsov' <anton@...msg.org>
Cc:	'David Woodhouse' <dwmw2@...radead.org>,
	linux-kernel@...r.kernel.org, 'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH 06/14] power: ds2780_battery: use devm_kzalloc()

Use devm_kzalloc() to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/power/ds2780_battery.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/power/ds2780_battery.c b/drivers/power/ds2780_battery.c
index 8b6c453..9f418fa 100644
--- a/drivers/power/ds2780_battery.c
+++ b/drivers/power/ds2780_battery.c
@@ -760,7 +760,7 @@ static int ds2780_battery_probe(struct platform_device *pdev)
 	int ret = 0;
 	struct ds2780_device_info *dev_info;
 
-	dev_info = kzalloc(sizeof(*dev_info), GFP_KERNEL);
+	dev_info = devm_kzalloc(&pdev->dev, sizeof(*dev_info), GFP_KERNEL);
 	if (!dev_info) {
 		ret = -ENOMEM;
 		goto fail;
@@ -779,7 +779,7 @@ static int ds2780_battery_probe(struct platform_device *pdev)
 	ret = power_supply_register(&pdev->dev, &dev_info->bat);
 	if (ret) {
 		dev_err(dev_info->dev, "failed to register battery\n");
-		goto fail_free_info;
+		goto fail;
 	}
 
 	ret = sysfs_create_group(&dev_info->bat.dev->kobj, &ds2780_attr_group);
@@ -813,8 +813,6 @@ fail_remove_group:
 	sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2780_attr_group);
 fail_unregister:
 	power_supply_unregister(&dev_info->bat);
-fail_free_info:
-	kfree(dev_info);
 fail:
 	return ret;
 }
@@ -828,7 +826,6 @@ static int ds2780_battery_remove(struct platform_device *pdev)
 
 	power_supply_unregister(&dev_info->bat);
 
-	kfree(dev_info);
 	return 0;
 }
 
-- 
1.7.2.5


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