iio:mcp4725: Use devm_iio_device_alloc

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/dac/mcp4725.c

@@ -292,15 +292,12 @@ static int mcp4725_probe(struct i2c_client *client,
 
 	if (!platform_data || !platform_data->vref_mv) {
 		dev_err(&client->dev, "invalid platform data");
-		err = -EINVAL;
-		goto exit;
+		return -EINVAL;
 	}
 
-	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 == NULL)
+		return -ENOMEM;
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
@@ -317,7 +314,7 @@ static int mcp4725_probe(struct i2c_client *client,
 	err = i2c_master_recv(client, inbuf, 3);
 	if (err < 0) {
 		dev_err(&client->dev, "failed to read DAC value");
-		goto exit_free_device;
+		return err;
 	}
 	pd = (inbuf[0] >> 1) & 0x3;
 	data->powerdown = pd > 0 ? true : false;
@@ -326,25 +323,16 @@ static int mcp4725_probe(struct i2c_client *client,
 
 	err = iio_device_register(indio_dev);
 	if (err)
-		goto exit_free_device;
+		return err;
 
 	dev_info(&client->dev, "MCP4725 DAC registered\n");
 
 	return 0;
-
-exit_free_device:
-	iio_device_free(indio_dev);
-exit:
-	return err;
 }
 
 static int mcp4725_remove(struct i2c_client *client)
 {
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
-	iio_device_unregister(indio_dev);
-	iio_device_free(indio_dev);
-
+	iio_device_unregister(i2c_get_clientdata(client));
 	return 0;
 }