hwmon: (xgene-hwmon) 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/20230918085951.1234172-25-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/xgene-hwmon.c b/drivers/hwmon/xgene-hwmon.c
index 78d9f52e2a7194f9e0bc8714394ea9311a006379..bf5b3880ce5be3ecf2e78448f1bcc06fa0260b0c 100644 (file)
--- a/drivers/hwmon/xgene-hwmon.c
+++ b/drivers/hwmon/xgene-hwmon.c
@@ -757,7 +757,7 @@ out_mbox_free:
        return rc;
 }
 
-static int xgene_hwmon_remove(struct platform_device *pdev)
+static void xgene_hwmon_remove(struct platform_device *pdev)
 {
        struct xgene_hwmon_dev *ctx = platform_get_drvdata(pdev);
 
@@ -768,8 +768,6 @@ static int xgene_hwmon_remove(struct platform_device *pdev)
                mbox_free_channel(ctx->mbox_chan);
        else
                pcc_mbox_free_channel(ctx->pcc_chan);
-
-       return 0;
 }
 
 static const struct of_device_id xgene_hwmon_of_match[] = {
@@ -780,7 +778,7 @@ MODULE_DEVICE_TABLE(of, xgene_hwmon_of_match);
 
 static struct platform_driver xgene_hwmon_driver = {
        .probe = xgene_hwmon_probe,
-       .remove = xgene_hwmon_remove,
+       .remove_new = xgene_hwmon_remove,
        .driver = {
                .name = "xgene-slimpro-hwmon",
                .of_match_table = xgene_hwmon_of_match,