hwmon: (w83781d) 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/20230918085951.1234172-24-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
index b33f382f238ddd8c74301ed10d39fee7e3e21766..cba5ec432e6d11ee13abf261043d65bd20fb9531 100644 (file)
--- a/drivers/hwmon/w83781d.c
+++ b/drivers/hwmon/w83781d.c
@@ -1816,16 +1816,13 @@ w83781d_isa_probe(struct platform_device *pdev)
        return err;
 }
 
-static int
-w83781d_isa_remove(struct platform_device *pdev)
+static void w83781d_isa_remove(struct platform_device *pdev)
 {
        struct w83781d_data *data = platform_get_drvdata(pdev);
 
        hwmon_device_unregister(data->hwmon_dev);
        w83781d_remove_files(&pdev->dev);
        device_remove_file(&pdev->dev, &dev_attr_name);
-
-       return 0;
 }
 
 static struct platform_driver w83781d_isa_driver = {
@@ -1833,7 +1830,7 @@ static struct platform_driver w83781d_isa_driver = {
                .name = "w83781d",
        },
        .probe = w83781d_isa_probe,
-       .remove = w83781d_isa_remove,
+       .remove_new = w83781d_isa_remove,
 };
 
 /* return 1 if a supported chip is found, 0 otherwise */