iio: adc: ad7923: use device-managed function for triggered buffer

Converts the iio_triggered_buffer_setup() call to its device-managed
counterpart.
With this, the error handling routine in the ad7923_probe() function
becomes unnecessary as well as the iio_triggered_buffer_cleanup() call.

Signed-off-by: Lucas Stankus <lucas.p.stankus@gmail.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/fe46a45caaa788f333d78367968272de728f4a6e.1616966903.git.lucas.p.stankus@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c
index 3418ef6..d07eaf3 100644 (file)
--- a/drivers/iio/adc/ad7923.c
+++ b/drivers/iio/adc/ad7923.c
@@ -351,20 +351,12 @@ static int ad7923_probe(struct spi_device *spi)
        if (ret)
                return ret;
 
-       ret = iio_triggered_buffer_setup(indio_dev, NULL,
-                                        &ad7923_trigger_handler, NULL);
+       ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev, NULL,
+                                             &ad7923_trigger_handler, NULL);
        if (ret)
                return ret;
 
-       ret = iio_device_register(indio_dev);
-       if (ret)
-               goto error_cleanup_ring;
-
-       return 0;
-
-error_cleanup_ring:
-       iio_triggered_buffer_cleanup(indio_dev);
-       return ret;
+       return iio_device_register(indio_dev);
 }
 
 static int ad7923_remove(struct spi_device *spi)
@@ -372,7 +364,6 @@ static int ad7923_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;
 }