Hi Uwe,
> From: Uwe Kleine-König, Sent: Thursday, May 18, 2023 8:02 AM
>
> 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>
Thank you for the patch!
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Best regards,
Yoshihiro Shimoda
> ---
> drivers/usb/host/ehci-platform.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
> index fe497c876d76..83bf56c9424f 100644
> --- a/drivers/usb/host/ehci-platform.c
> +++ b/drivers/usb/host/ehci-platform.c
> @@ -400,7 +400,7 @@ static int ehci_platform_probe(struct platform_device *dev)
> return err;
> }
>
> -static int ehci_platform_remove(struct platform_device *dev)
> +static void ehci_platform_remove(struct platform_device *dev)
> {
> struct usb_hcd *hcd = platform_get_drvdata(dev);
> struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev);
> @@ -424,8 +424,6 @@ static int ehci_platform_remove(struct platform_device *dev)
>
> if (pdata == &ehci_platform_defaults)
> dev->dev.platform_data = NULL;
> -
> - return 0;
> }
>
> static int __maybe_unused ehci_platform_suspend(struct device *dev)
> @@ -511,7 +509,7 @@ static SIMPLE_DEV_PM_OPS(ehci_platform_pm_ops, ehci_platform_suspend,
> static struct platform_driver ehci_platform_driver = {
> .id_table = ehci_platform_table,
> .probe = ehci_platform_probe,
> - .remove = ehci_platform_remove,
> + .remove_new = ehci_platform_remove,
> .shutdown = usb_hcd_platform_shutdown,
> .driver = {
> .name = "ehci-platform",
> --
> 2.39.2
