hwmon: (ad7414) 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/ad7414.c b/drivers/hwmon/ad7414.c
index 06d2d60..b420fb3 100644 (file)
--- a/drivers/hwmon/ad7414.c
+++ b/drivers/hwmon/ad7414.c
@@ -185,16 +185,13 @@ static int ad7414_probe(struct i2c_client *client,
        int err;
 
        if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
-                                    I2C_FUNC_SMBUS_READ_WORD_DATA)) {
-               err = -EOPNOTSUPP;
-               goto exit;
-       }
+                                    I2C_FUNC_SMBUS_READ_WORD_DATA))
+               return -EOPNOTSUPP;
 
-       data = kzalloc(sizeof(struct ad7414_data), GFP_KERNEL);
-       if (!data) {
-               err = -ENOMEM;
-               goto exit;
-       }
+       data = devm_kzalloc(&client->dev, sizeof(struct ad7414_data),
+                           GFP_KERNEL);
+       if (!data)
+               return -ENOMEM;
 
        i2c_set_clientdata(client, data);
        mutex_init(&data->lock);
@@ -214,7 +211,7 @@ static int ad7414_probe(struct i2c_client *client,
        /* Register sysfs hooks */
        err = sysfs_create_group(&client->dev.kobj, &ad7414_group);
        if (err)
-               goto exit_free;
+               return err;
 
        data->hwmon_dev = hwmon_device_register(&client->dev);
        if (IS_ERR(data->hwmon_dev)) {
@@ -226,9 +223,6 @@ static int ad7414_probe(struct i2c_client *client,
 
 exit_remove:
        sysfs_remove_group(&client->dev.kobj, &ad7414_group);
-exit_free:
-       kfree(data);
-exit:
        return err;
 }
 
@@ -238,7 +232,6 @@ static int __devexit ad7414_remove(struct i2c_client *client)
 
        hwmon_device_unregister(data->hwmon_dev);
        sysfs_remove_group(&client->dev.kobj, &ad7414_group);
-       kfree(data);
        return 0;
 }