rtc: hid-sensor-time: Convert to platform remove callback returning void
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Sat, 4 Mar 2023 13:30:00 +0000 (14:30 +0100)
committerAlexandre Belloni <alexandre.belloni@bootlin.com>
Fri, 17 Mar 2023 22:03:17 +0000 (23:03 +0100)
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 (mostly) ignored
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.

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/20230304133028.2135435-14-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
drivers/rtc/rtc-hid-sensor-time.c

index 16fdefa..b81cea5 100644 (file)
@@ -296,14 +296,12 @@ err_open:
        return ret;
 }
 
-static int hid_time_remove(struct platform_device *pdev)
+static void hid_time_remove(struct platform_device *pdev)
 {
        struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
 
        sensor_hub_device_close(hsdev);
        sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_TIME);
-
-       return 0;
 }
 
 static const struct platform_device_id hid_time_ids[] = {
@@ -321,7 +319,7 @@ static struct platform_driver hid_time_platform_driver = {
                .name   = KBUILD_MODNAME,
        },
        .probe          = hid_time_probe,
-       .remove         = hid_time_remove,
+       .remove_new     = hid_time_remove,
 };
 module_platform_driver(hid_time_platform_driver);