hwmon: (ds620) 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/ds620.c b/drivers/hwmon/ds620.c
index 50663ef..f1d6b42 100644 (file)
--- a/drivers/hwmon/ds620.c
+++ b/drivers/hwmon/ds620.c
@@ -232,11 +232,10 @@ static int ds620_probe(struct i2c_client *client,
        struct ds620_data *data;
        int err;
 
-       data = kzalloc(sizeof(struct ds620_data), GFP_KERNEL);
-       if (!data) {
-               err = -ENOMEM;
-               goto exit;
-       }
+       data = devm_kzalloc(&client->dev, sizeof(struct ds620_data),
+                           GFP_KERNEL);
+       if (!data)
+               return -ENOMEM;
 
        i2c_set_clientdata(client, data);
        mutex_init(&data->update_lock);
@@ -247,7 +246,7 @@ static int ds620_probe(struct i2c_client *client,
        /* Register sysfs hooks */
        err = sysfs_create_group(&client->dev.kobj, &ds620_group);
        if (err)
-               goto exit_free;
+               return err;
 
        data->hwmon_dev = hwmon_device_register(&client->dev);
        if (IS_ERR(data->hwmon_dev)) {
@@ -261,9 +260,6 @@ static int ds620_probe(struct i2c_client *client,
 
 exit_remove_files:
        sysfs_remove_group(&client->dev.kobj, &ds620_group);
-exit_free:
-       kfree(data);
-exit:
        return err;
 }
 
@@ -274,8 +270,6 @@ static int ds620_remove(struct i2c_client *client)
        hwmon_device_unregister(data->hwmon_dev);
        sysfs_remove_group(&client->dev.kobj, &ds620_group);
 
-       kfree(data);
-
        return 0;
 }