thermal: k3_bandgap: 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/k3_bandgap.c b/drivers/thermal/k3_bandgap.c
index 4a918c1e92f9ba31aec160c95c25f47c8b6ff91c..e88192d2afeae820b7d95120a065e8360727026a 100644 (file)
--- a/drivers/thermal/k3_bandgap.c
+++ b/drivers/thermal/k3_bandgap.c
@@ -235,12 +235,10 @@ err_alloc:
        return ret;
 }
 
-static int k3_bandgap_remove(struct platform_device *pdev)
+static void k3_bandgap_remove(struct platform_device *pdev)
 {
        pm_runtime_put_sync(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
-
-       return 0;
 }
 
 static const struct of_device_id of_k3_bandgap_match[] = {
@@ -253,7 +251,7 @@ MODULE_DEVICE_TABLE(of, of_k3_bandgap_match);
 
 static struct platform_driver k3_bandgap_sensor_driver = {
        .probe = k3_bandgap_probe,
-       .remove = k3_bandgap_remove,
+       .remove_new = k3_bandgap_remove,
        .driver = {
                .name = "k3-soc-thermal",
                .of_match_table = of_k3_bandgap_match,