iio: maxim_thermocouple: 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/temperature/maxim_thermocouple.c b/drivers/iio/temperature/maxim_thermocouple.c
index c613a64..2ab6828 100644 (file)
--- a/drivers/iio/temperature/maxim_thermocouple.c
+++ b/drivers/iio/temperature/maxim_thermocouple.c
@@ -230,31 +230,13 @@ static int maxim_thermocouple_probe(struct spi_device *spi)
        data->spi = spi;
        data->chip = chip;
 
-       ret = iio_triggered_buffer_setup(indio_dev, NULL,
+       ret = devm_iio_triggered_buffer_setup(&spi->dev,
+                               indio_dev, NULL,
                                maxim_thermocouple_trigger_handler, NULL);
        if (ret)
                return ret;
 
-       ret = iio_device_register(indio_dev);
-       if (ret)
-               goto error_unreg_buffer;
-
-       return 0;
-
-error_unreg_buffer:
-       iio_triggered_buffer_cleanup(indio_dev);
-
-       return ret;
-}
-
-static int maxim_thermocouple_remove(struct spi_device *spi)
-{
-       struct iio_dev *indio_dev = spi_get_drvdata(spi);
-
-       iio_device_unregister(indio_dev);
-       iio_triggered_buffer_cleanup(indio_dev);
-
-       return 0;
+       return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
 static const struct spi_device_id maxim_thermocouple_id[] = {
@@ -277,7 +259,6 @@ static struct spi_driver maxim_thermocouple_driver = {
                .of_match_table = maxim_thermocouple_of_match,
        },
        .probe          = maxim_thermocouple_probe,
-       .remove         = maxim_thermocouple_remove,
        .id_table       = maxim_thermocouple_id,
 };
 module_spi_driver(maxim_thermocouple_driver);