usb: typec: tcpci_mt6360: 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 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@pengutronix.de>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230517230239.187727-95-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/tcpm/tcpci_mt6370.c b/drivers/usb/typec/tcpm/tcpci_mt6370.c
index c5bb201..2a07946 100644 (file)
--- a/drivers/usb/typec/tcpm/tcpci_mt6370.c
+++ b/drivers/usb/typec/tcpm/tcpci_mt6370.c
@@ -178,12 +178,10 @@ static int mt6370_tcpc_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int mt6370_tcpc_remove(struct platform_device *pdev)
+static void mt6370_tcpc_remove(struct platform_device *pdev)
 {
        dev_pm_clear_wake_irq(&pdev->dev);
        device_init_wakeup(&pdev->dev, false);
-
-       return 0;
 }
 
 static const struct of_device_id mt6370_tcpc_devid_table[] = {
@@ -198,7 +196,7 @@ static struct platform_driver mt6370_tcpc_driver = {
                .of_match_table = mt6370_tcpc_devid_table,
        },
        .probe = mt6370_tcpc_probe,
-       .remove = mt6370_tcpc_remove,
+       .remove_new = mt6370_tcpc_remove,
 };
 module_platform_driver(mt6370_tcpc_driver);