iio: light: cm3323: Use device-managed APIs

Use device-managed APIs to simplify the code.
The remove functions are redundant now and can
be deleted.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c
index 50f3438c2b498eb8b5aa545cbd4f1476bc3b6f57..0443861ba1ec924be6def0bd39075a1e59d14a3d 100644 (file)
--- a/drivers/iio/light/cm3323.c
+++ b/drivers/iio/light/cm3323.c
@@ -101,15 +101,16 @@ static int cm3323_init(struct iio_dev *indio_dev)
        return 0;
 }
 
-static void cm3323_disable(struct iio_dev *indio_dev)
+static void cm3323_disable(void *data)
 {
        int ret;
-       struct cm3323_data *data = iio_priv(indio_dev);
+       struct iio_dev *indio_dev = data;
+       struct cm3323_data *cm_data = iio_priv(indio_dev);
 
-       ret = i2c_smbus_write_word_data(data->client, CM3323_CMD_CONF,
+       ret = i2c_smbus_write_word_data(cm_data->client, CM3323_CMD_CONF,
                                        CM3323_CONF_SD_BIT);
        if (ret < 0)
-               dev_err(&data->client->dev, "Error writing reg_conf\n");
+               dev_err(&cm_data->client->dev, "Error writing reg_conf\n");
 }
 
 static int cm3323_set_it_bits(struct cm3323_data *data, int val, int val2)
@@ -243,26 +244,11 @@ static int cm3323_probe(struct i2c_client *client,
                return ret;
        }
 
-       ret = iio_device_register(indio_dev);
-       if (ret < 0) {
-               dev_err(&client->dev, "failed to register iio dev\n");
-               goto err_init;
-       }
-
-       return 0;
-err_init:
-       cm3323_disable(indio_dev);
-       return ret;
-}
-
-static int cm3323_remove(struct i2c_client *client)
-{
-       struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
-       iio_device_unregister(indio_dev);
-       cm3323_disable(indio_dev);
+       ret = devm_add_action_or_reset(&client->dev, cm3323_disable, indio_dev);
+       if (ret < 0)
+               return ret;
 
-       return 0;
+       return devm_iio_device_register(&client->dev, indio_dev);
 }
 
 static const struct i2c_device_id cm3323_id[] = {
@@ -276,7 +262,6 @@ static struct i2c_driver cm3323_driver = {
                .name = CM3323_DRV_NAME,
        },
        .probe          = cm3323_probe,
-       .remove         = cm3323_remove,
        .id_table       = cm3323_id,
 };