From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 2 Jun 2012 16:58:04 +0000 (-0700)
Subject: hwmon: (emc1403) Convert to use devm_ functions
X-Git-Tag: upstream/snapshot3+hdmi~6590^2~44
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7b52eefe1637cffd449abdb5ce67e7dfbda8b2c1;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

hwmon: (emc1403) Convert to use devm_ functions

Convert to use devm_ functions to reduce code size and simplify the code.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---

diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c
index 149dcb0..68ab94b 100644
--- a/drivers/hwmon/emc1403.c
+++ b/drivers/hwmon/emc1403.c
@@ -306,11 +306,10 @@ static int emc1403_probe(struct i2c_client *client,
 	int res;
 	struct thermal_data *data;
 
-	data = kzalloc(sizeof(struct thermal_data), GFP_KERNEL);
-	if (data == NULL) {
-		dev_warn(&client->dev, "out of memory");
+	data = devm_kzalloc(&client->dev, sizeof(struct thermal_data),
+			    GFP_KERNEL);
+	if (data == NULL)
 		return -ENOMEM;
-	}
 
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->mutex);
@@ -319,21 +318,19 @@ static int emc1403_probe(struct i2c_client *client,
 	res = sysfs_create_group(&client->dev.kobj, &m_thermal_gr);
 	if (res) {
 		dev_warn(&client->dev, "create group failed\n");
-		goto thermal_error1;
+		return res;
 	}
 	data->hwmon_dev = hwmon_device_register(&client->dev);
 	if (IS_ERR(data->hwmon_dev)) {
 		res = PTR_ERR(data->hwmon_dev);
 		dev_warn(&client->dev, "register hwmon dev failed\n");
-		goto thermal_error2;
+		goto thermal_error;
 	}
 	dev_info(&client->dev, "EMC1403 Thermal chip found\n");
-	return res;
+	return 0;
 
-thermal_error2:
+thermal_error:
 	sysfs_remove_group(&client->dev.kobj, &m_thermal_gr);
-thermal_error1:
-	kfree(data);
 	return res;
 }
 
@@ -343,7 +340,6 @@ static int emc1403_remove(struct i2c_client *client)
 
 	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &m_thermal_gr);
-	kfree(data);
 	return 0;
 }