watchdog: bcm_kona: 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>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230303213716.2123717-10-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

diff --git a/drivers/watchdog/bcm_kona_wdt.c b/drivers/watchdog/bcm_kona_wdt.c
index 8237c4e..49e12d4 100644 (file)
--- a/drivers/watchdog/bcm_kona_wdt.c
+++ b/drivers/watchdog/bcm_kona_wdt.c
@@ -310,12 +310,10 @@ static int bcm_kona_wdt_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int bcm_kona_wdt_remove(struct platform_device *pdev)
+static void bcm_kona_wdt_remove(struct platform_device *pdev)
 {
        bcm_kona_wdt_debug_exit(pdev);
        dev_dbg(&pdev->dev, "Watchdog driver disabled");
-
-       return 0;
 }
 
 static const struct of_device_id bcm_kona_wdt_of_match[] = {
@@ -330,7 +328,7 @@ static struct platform_driver bcm_kona_wdt_driver = {
                        .of_match_table = bcm_kona_wdt_of_match,
                  },
        .probe = bcm_kona_wdt_probe,
-       .remove = bcm_kona_wdt_remove,
+       .remove_new = bcm_kona_wdt_remove,
 };
 
 module_platform_driver(bcm_kona_wdt_driver);