usb: musb: da8xx: Convert to platform remove callback returning void

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@pengutronix.de>
Link: https://lore.kernel.org/r/20230405141009.3400693-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index d47e5c9..912e32b 100644 (file)
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -576,14 +576,12 @@ static int da8xx_probe(struct platform_device *pdev)
        return ret;
 }
 
-static int da8xx_remove(struct platform_device *pdev)
+static void da8xx_remove(struct platform_device *pdev)
 {
        struct da8xx_glue               *glue = platform_get_drvdata(pdev);
 
        platform_device_unregister(glue->musb);
        usb_phy_generic_unregister(glue->usb_phy);
-
-       return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -626,7 +624,7 @@ MODULE_DEVICE_TABLE(of, da8xx_id_table);
 
 static struct platform_driver da8xx_driver = {
        .probe          = da8xx_probe,
-       .remove         = da8xx_remove,
+       .remove_new     = da8xx_remove,
        .driver         = {
                .name   = "musb-da8xx",
                .pm = &da8xx_pm_ops,