hwmon: (ads7828) 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/ads7828.c b/drivers/hwmon/ads7828.c
index bf3fdf4..1f9e8af 100644 (file)
--- a/drivers/hwmon/ads7828.c
+++ b/drivers/hwmon/ads7828.c
@@ -154,7 +154,6 @@ static int ads7828_remove(struct i2c_client *client)
        struct ads7828_data *data = i2c_get_clientdata(client);
        hwmon_device_unregister(data->hwmon_dev);
        sysfs_remove_group(&client->dev.kobj, &ads7828_group);
-       kfree(i2c_get_clientdata(client));
        return 0;
 }
 
@@ -217,11 +216,10 @@ static int ads7828_probe(struct i2c_client *client,
        struct ads7828_data *data;
        int err;
 
-       data = kzalloc(sizeof(struct ads7828_data), GFP_KERNEL);
-       if (!data) {
-               err = -ENOMEM;
-               goto exit;
-       }
+       data = devm_kzalloc(&client->dev, sizeof(struct ads7828_data),
+                           GFP_KERNEL);
+       if (!data)
+               return -ENOMEM;
 
        i2c_set_clientdata(client, data);
        mutex_init(&data->update_lock);
@@ -229,7 +227,7 @@ static int ads7828_probe(struct i2c_client *client,
        /* Register sysfs hooks */
        err = sysfs_create_group(&client->dev.kobj, &ads7828_group);
        if (err)
-               goto exit_free;
+               return err;
 
        data->hwmon_dev = hwmon_device_register(&client->dev);
        if (IS_ERR(data->hwmon_dev)) {
@@ -241,9 +239,6 @@ static int ads7828_probe(struct i2c_client *client,
 
 exit_remove:
        sysfs_remove_group(&client->dev.kobj, &ads7828_group);
-exit_free:
-       kfree(data);
-exit:
        return err;
 }