staging: nvec: nvec_kbd: 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/20230403154014.2564054-20-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/nvec/nvec_kbd.c b/drivers/staging/nvec/nvec_kbd.c
index 386d619..f9a1da9 100644 (file)
--- a/drivers/staging/nvec/nvec_kbd.c
+++ b/drivers/staging/nvec/nvec_kbd.c
@@ -161,7 +161,7 @@ static int nvec_kbd_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int nvec_kbd_remove(struct platform_device *pdev)
+static void nvec_kbd_remove(struct platform_device *pdev)
 {
        struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
        char disable_kbd[] = { NVEC_KBD, DISABLE_KBD },
@@ -170,13 +170,11 @@ static int nvec_kbd_remove(struct platform_device *pdev)
        nvec_write_async(nvec, uncnfg_wake_key_reporting, 3);
        nvec_write_async(nvec, disable_kbd, 2);
        nvec_unregister_notifier(nvec, &keys_dev.notifier);
-
-       return 0;
 }
 
 static struct platform_driver nvec_kbd_driver = {
        .probe  = nvec_kbd_probe,
-       .remove = nvec_kbd_remove,
+       .remove_new = nvec_kbd_remove,
        .driver = {
                .name = "nvec-kbd",
        },