Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> 于2023年3月15日周三 23:08写道：
> 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 (mostly) ignored
> 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.
>
> 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: Ban Tao <fengzheng923@xxxxxxxxx>
> ---
> sound/soc/sunxi/sun50i-dmic.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/sound/soc/sunxi/sun50i-dmic.c b/sound/soc/sunxi/sun50i-dmic.c
> index 069c993acb31..c10439b9e0a2 100644
> --- a/sound/soc/sunxi/sun50i-dmic.c
> +++ b/sound/soc/sunxi/sun50i-dmic.c
> @@ -373,13 +373,11 @@ static int sun50i_dmic_probe(struct platform_device
> *pdev)
> return ret;
> }
>
> -static int sun50i_dmic_remove(struct platform_device *pdev)
> +static void sun50i_dmic_remove(struct platform_device *pdev)
> {
> pm_runtime_disable(&pdev->dev);
> if (!pm_runtime_status_suspended(&pdev->dev))
> sun50i_dmic_runtime_suspend(&pdev->dev);
> -
> - return 0;
> }
>
> static const struct dev_pm_ops sun50i_dmic_pm = {
> @@ -394,7 +392,7 @@ static struct platform_driver sun50i_dmic_driver = {
> .pm = &sun50i_dmic_pm,
> },
> .probe = sun50i_dmic_probe,
> - .remove = sun50i_dmic_remove,
> + .remove_new = sun50i_dmic_remove,
> };
>
> module_platform_driver(sun50i_dmic_driver);
> --
> 2.39.2
>
>
