regulator: db8500-prcmu: 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>
Link: https://msgid.link/r/fcaa42d7dd707031ed8dd9e8c28483891b879965.1701778038.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/db8500-prcmu.c b/drivers/regulator/db8500-prcmu.c
index 34c5e485d0af3a1a3b65f75dd64c09b927a18387..1e2d54da1b9a7471692ce35476ab1af8237aa012 100644 (file)
--- a/drivers/regulator/db8500-prcmu.c
+++ b/drivers/regulator/db8500-prcmu.c
@@ -469,11 +469,9 @@ static int db8500_regulator_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int db8500_regulator_remove(struct platform_device *pdev)
+static void db8500_regulator_remove(struct platform_device *pdev)
 {
        ux500_regulator_debug_exit();
-
-       return 0;
 }
 
 static struct platform_driver db8500_regulator_driver = {
@@ -482,7 +480,7 @@ static struct platform_driver db8500_regulator_driver = {
                .probe_type = PROBE_PREFER_ASYNCHRONOUS,
        },
        .probe = db8500_regulator_probe,
-       .remove = db8500_regulator_remove,
+       .remove_new = db8500_regulator_remove,
 };
 
 static int __init db8500_regulator_init(void)