hwmon: (tmp421) 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>
Acked-by: Jean Delvare <khali@linux-fr.org>

diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index 8fac87a38544ba450abd7fc14b55f2f29b396a55..6a8ded29f1ed55ddd21c6b0e7532c911a6649937 100644 (file)
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -267,7 +267,8 @@ static int tmp421_probe(struct i2c_client *client,
        struct tmp421_data *data;
        int err;
 
-       data = kzalloc(sizeof(struct tmp421_data), GFP_KERNEL);
+       data = devm_kzalloc(&client->dev, sizeof(struct tmp421_data),
+                           GFP_KERNEL);
        if (!data)
                return -ENOMEM;
 
@@ -277,11 +278,11 @@ static int tmp421_probe(struct i2c_client *client,
 
        err = tmp421_init_client(client);
        if (err)
-               goto exit_free;
+               return err;
 
        err = sysfs_create_group(&client->dev.kobj, &tmp421_group);
        if (err)
-               goto exit_free;
+               return err;
 
        data->hwmon_dev = hwmon_device_register(&client->dev);
        if (IS_ERR(data->hwmon_dev)) {
@@ -293,10 +294,6 @@ static int tmp421_probe(struct i2c_client *client,
 
 exit_remove:
        sysfs_remove_group(&client->dev.kobj, &tmp421_group);
-
-exit_free:
-       kfree(data);
-
        return err;
 }
 
@@ -307,8 +304,6 @@ static int tmp421_remove(struct i2c_client *client)
        hwmon_device_unregister(data->hwmon_dev);
        sysfs_remove_group(&client->dev.kobj, &tmp421_group);
 
-       kfree(data);
-
        return 0;
 }