Input: sun4i-ps2 - 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: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230920125829.1478827-43-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/serio/sun4i-ps2.c b/drivers/input/serio/sun4i-ps2.c
index eb262640192e989e5d1966dc7f155443cfe62248..aec66d9f517615bf7a8b21432bab07f485f1386c 100644 (file)
--- a/drivers/input/serio/sun4i-ps2.c
+++ b/drivers/input/serio/sun4i-ps2.c
@@ -297,7 +297,7 @@ err_free_mem:
        return error;
 }
 
-static int sun4i_ps2_remove(struct platform_device *pdev)
+static void sun4i_ps2_remove(struct platform_device *pdev)
 {
        struct sun4i_ps2data *drvdata = platform_get_drvdata(pdev);
 
@@ -311,8 +311,6 @@ static int sun4i_ps2_remove(struct platform_device *pdev)
        iounmap(drvdata->reg_base);
 
        kfree(drvdata);
-
-       return 0;
 }
 
 static const struct of_device_id sun4i_ps2_match[] = {
@@ -324,7 +322,7 @@ MODULE_DEVICE_TABLE(of, sun4i_ps2_match);
 
 static struct platform_driver sun4i_ps2_driver = {
        .probe          = sun4i_ps2_probe,
-       .remove         = sun4i_ps2_remove,
+       .remove_new     = sun4i_ps2_remove,
        .driver = {
                .name = DRIVER_NAME,
                .of_match_table = sun4i_ps2_match,