Input: rpckbd - 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() will be 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>
Link: https://lore.kernel.org/r/20230920125829.1478827-42-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/serio/rpckbd.c b/drivers/input/serio/rpckbd.c
index e8a9709f32ebbb68ab1d09f8bc56860f1751b63c..9bbfefd092c0852c558baef07e71baaecf1f62bd 100644 (file)
--- a/drivers/input/serio/rpckbd.c
+++ b/drivers/input/serio/rpckbd.c
@@ -133,20 +133,18 @@ static int rpckbd_probe(struct platform_device *dev)
        return 0;
 }
 
-static int rpckbd_remove(struct platform_device *dev)
+static void rpckbd_remove(struct platform_device *dev)
 {
        struct serio *serio = platform_get_drvdata(dev);
        struct rpckbd_data *rpckbd = serio->port_data;
 
        serio_unregister_port(serio);
        kfree(rpckbd);
-
-       return 0;
 }
 
 static struct platform_driver rpckbd_driver = {
        .probe          = rpckbd_probe,
-       .remove         = rpckbd_remove,
+       .remove_new     = rpckbd_remove,
        .driver         = {
                .name   = "kart",
        },