On Thu, May 18, 2023, Uwe Kleine-König wrote:
> 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() is
> 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>
> ---
> drivers/usb/dwc3/dwc3-meson-g12a.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c
> index b282ad0e69c6..7ed5a21fb441 100644
> --- a/drivers/usb/dwc3/dwc3-meson-g12a.c
> +++ b/drivers/usb/dwc3/dwc3-meson-g12a.c
> @@ -835,7 +835,7 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
> return ret;
> }
>
> -static int dwc3_meson_g12a_remove(struct platform_device *pdev)
> +static void dwc3_meson_g12a_remove(struct platform_device *pdev)
> {
> struct dwc3_meson_g12a *priv = platform_get_drvdata(pdev);
> struct device *dev = &pdev->dev;
> @@ -859,8 +859,6 @@ static int dwc3_meson_g12a_remove(struct platform_device *pdev)
>
> clk_bulk_disable_unprepare(priv->drvdata->num_clks,
> priv->drvdata->clks);
> -
> - return 0;
> }
>
> static int __maybe_unused dwc3_meson_g12a_runtime_suspend(struct device *dev)
> @@ -971,7 +969,7 @@ MODULE_DEVICE_TABLE(of, dwc3_meson_g12a_match);
>
> static struct platform_driver dwc3_meson_g12a_driver = {
> .probe = dwc3_meson_g12a_probe,
> - .remove = dwc3_meson_g12a_remove,
> + .remove_new = dwc3_meson_g12a_remove,
> .driver = {
> .name = "dwc3-meson-g12a",
> .of_match_table = dwc3_meson_g12a_match,
> --
> 2.39.2
>
Acked-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
Thanks,
Thinh
