thermal: rzg2l: 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: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/thermal/rzg2l_thermal.c b/drivers/thermal/rzg2l_thermal.c
index 6b2bf3426f52fc3fd6b80195c06c8ef7e6ea1dcc..04efd824ac4c95f06f09706b7e54746dd88911a4 100644 (file)
--- a/drivers/thermal/rzg2l_thermal.c
+++ b/drivers/thermal/rzg2l_thermal.c
@@ -150,14 +150,12 @@ static void rzg2l_thermal_reset_assert_pm_disable_put(struct platform_device *pd
        reset_control_assert(priv->rstc);
 }
 
-static int rzg2l_thermal_remove(struct platform_device *pdev)
+static void rzg2l_thermal_remove(struct platform_device *pdev)
 {
        struct rzg2l_thermal_priv *priv = dev_get_drvdata(&pdev->dev);
 
        thermal_remove_hwmon_sysfs(priv->zone);
        rzg2l_thermal_reset_assert_pm_disable_put(pdev);
-
-       return 0;
 }
 
 static int rzg2l_thermal_probe(struct platform_device *pdev)
@@ -242,7 +240,7 @@ static struct platform_driver rzg2l_thermal_driver = {
                .of_match_table = rzg2l_thermal_dt_ids,
        },
        .probe = rzg2l_thermal_probe,
-       .remove = rzg2l_thermal_remove,
+       .remove_new = rzg2l_thermal_remove,
 };
 module_platform_driver(rzg2l_thermal_driver);