iio: dac: max517: Use devm_iio_device_alloc

Using devm_iio_device_alloc makes code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Roland Stigge <stigge@antcom.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/dac/max517.c

@@ -164,11 +164,9 @@ static int max517_probe(struct i2c_client *client,
 	struct max517_platform_data *platform_data = client->dev.platform_data;
 	int err;
 
-	indio_dev = iio_device_alloc(sizeof(*data));
-	if (indio_dev == NULL) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
@@ -198,23 +196,16 @@ static int max517_probe(struct i2c_client *client,
 
 	err = iio_device_register(indio_dev);
 	if (err)
-		goto exit_free_device;
+		return err;
 
 	dev_info(&client->dev, "DAC registered\n");
 
 	return 0;
-
-exit_free_device:
-	iio_device_free(indio_dev);
-exit:
-	return err;
 }
 
 static int max517_remove(struct i2c_client *client)
 {
 	iio_device_unregister(i2c_get_clientdata(client));
-	iio_device_free(i2c_get_clientdata(client));
-
 	return 0;
 }