power: supply: isp1704_charger: 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>
Link: https://lore.kernel.org/r/20230918133700.1254499-16-u.kleine-koenig@pengutronix.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

diff --git a/drivers/power/supply/isp1704_charger.c b/drivers/power/supply/isp1704_charger.c
index b6efc454e4f02d4f1da9b2576f8d93b981a68360..860d8614c98fd384fb974d2495ecaea68e9919b9 100644 (file)
--- a/drivers/power/supply/isp1704_charger.c
+++ b/drivers/power/supply/isp1704_charger.c
@@ -477,15 +477,13 @@ fail0:
        return ret;
 }
 
-static int isp1704_charger_remove(struct platform_device *pdev)
+static void isp1704_charger_remove(struct platform_device *pdev)
 {
        struct isp1704_charger *isp = platform_get_drvdata(pdev);
 
        usb_unregister_notifier(isp->phy, &isp->nb);
        power_supply_unregister(isp->psy);
        isp1704_charger_set_power(isp, 0);
-
-       return 0;
 }
 
 #ifdef CONFIG_OF
@@ -503,7 +501,7 @@ static struct platform_driver isp1704_charger_driver = {
                .of_match_table = of_match_ptr(omap_isp1704_of_match),
        },
        .probe = isp1704_charger_probe,
-       .remove = isp1704_charger_remove,
+       .remove_new = isp1704_charger_remove,
 };
 
 module_platform_driver(isp1704_charger_driver);