Dne torek, 19. september 2023 ob 19:49:06 CEST je Uwe Kleine-König napisal(a):
> The .remove() callback for a platform driver returns an int which makes
> many driver authors wrongly assume it's possible to do error handling by
> returning an error code. However the value returned is ignored (apart
> from emitting a warning) and this typically results in resource leaks.
> To improve here there is a quest to make the remove callback return
> void. In the first step of this quest all drivers are converted to
> .remove_new() which already returns void. Eventually after all drivers
> are converted, .remove_new() will be renamed to .remove().
>
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Acked-by: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
Best regards,
Jernej
> ---
> drivers/iio/adc/sun4i-gpadc-iio.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c
> b/drivers/iio/adc/sun4i-gpadc-iio.c index 25bba96367a8..100ecced5fc1 100644
> --- a/drivers/iio/adc/sun4i-gpadc-iio.c
> +++ b/drivers/iio/adc/sun4i-gpadc-iio.c
> @@ -669,7 +669,7 @@ static int sun4i_gpadc_probe(struct platform_device
> *pdev) return ret;
> }
>
> -static int sun4i_gpadc_remove(struct platform_device *pdev)
> +static void sun4i_gpadc_remove(struct platform_device *pdev)
> {
> struct iio_dev *indio_dev = platform_get_drvdata(pdev);
> struct sun4i_gpadc_iio *info = iio_priv(indio_dev);
> @@ -678,12 +678,10 @@ static int sun4i_gpadc_remove(struct platform_device
> *pdev) pm_runtime_disable(&pdev->dev);
>
> if (!IS_ENABLED(CONFIG_THERMAL_OF))
> - return 0;
> + return;
>
> if (!info->no_irq)
> iio_map_array_unregister(indio_dev);
> -
> - return 0;
> }
>
> static const struct platform_device_id sun4i_gpadc_id[] = {
> @@ -702,7 +700,7 @@ static struct platform_driver sun4i_gpadc_driver = {
> },
> .id_table = sun4i_gpadc_id,
> .probe = sun4i_gpadc_probe,
> - .remove = sun4i_gpadc_remove,
> + .remove_new = sun4i_gpadc_remove,
> };
> MODULE_DEVICE_TABLE(of, sun4i_gpadc_of_id);
