From: Uwe Kleine-König Date: Tue, 19 Sep 2023 17:49:17 +0000 (+0200) Subject: iio: humidity: hid-sensor-humidity: Convert to platform remove callback returning... X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b06ab8c8ac9da9d03cec61678fe04404450ee76a;p=linux.git iio: humidity: hid-sensor-humidity: 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 Link: https://lore.kernel.org/r/20230919174931.1417681-36-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron --- diff --git a/drivers/iio/humidity/hid-sensor-humidity.c b/drivers/iio/humidity/hid-sensor-humidity.c index fa0fe404a70a2..bf6d2636a85e7 100644 --- a/drivers/iio/humidity/hid-sensor-humidity.c +++ b/drivers/iio/humidity/hid-sensor-humidity.c @@ -260,7 +260,7 @@ error_remove_trigger: } /* Function to deinitialize the processing for usage id */ -static int hid_humidity_remove(struct platform_device *pdev) +static void hid_humidity_remove(struct platform_device *pdev) { struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev); struct iio_dev *indio_dev = platform_get_drvdata(pdev); @@ -269,8 +269,6 @@ static int hid_humidity_remove(struct platform_device *pdev) iio_device_unregister(indio_dev); sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_HUMIDITY); hid_sensor_remove_trigger(indio_dev, &humid_st->common_attributes); - - return 0; } static const struct platform_device_id hid_humidity_ids[] = { @@ -289,7 +287,7 @@ static struct platform_driver hid_humidity_platform_driver = { .pm = &hid_sensor_pm_ops, }, .probe = hid_humidity_probe, - .remove = hid_humidity_remove, + .remove_new = hid_humidity_remove, }; module_platform_driver(hid_humidity_platform_driver);