Input: wm831x-on - 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>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230920125829.1478827-28-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/misc/wm831x-on.c b/drivers/input/misc/wm831x-on.c
index a42fe041b73c67da266b786eb88f89540af05b46..e4a06c73b72d9dd07ac7dc938bb11f5cffed58f3 100644 (file)
--- a/drivers/input/misc/wm831x-on.c
+++ b/drivers/input/misc/wm831x-on.c
@@ -123,20 +123,18 @@ err:
        return ret;
 }
 
-static int wm831x_on_remove(struct platform_device *pdev)
+static void wm831x_on_remove(struct platform_device *pdev)
 {
        struct wm831x_on *wm831x_on = platform_get_drvdata(pdev);
        int irq = platform_get_irq(pdev, 0);
 
        free_irq(irq, wm831x_on);
        cancel_delayed_work_sync(&wm831x_on->work);
-
-       return 0;
 }
 
 static struct platform_driver wm831x_on_driver = {
        .probe          = wm831x_on_probe,
-       .remove         = wm831x_on_remove,
+       .remove_new     = wm831x_on_remove,
        .driver         = {
                .name   = "wm831x-on",
        },