From: Uwe Kleine-König Date: Tue, 19 Sep 2023 17:48:49 +0000 (+0200) Subject: iio: adc: dln2: Convert to platform remove callback returning void X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=cb299d2a561dfd6816d120deac096562d5f111b5;p=linux.git iio: adc: dln2: 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/20230919174931.1417681-8-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron --- diff --git a/drivers/iio/adc/dln2-adc.c b/drivers/iio/adc/dln2-adc.c index 97d162a3cba4e..06cfbbabaf8dc 100644 --- a/drivers/iio/adc/dln2-adc.c +++ b/drivers/iio/adc/dln2-adc.c @@ -691,19 +691,18 @@ unregister_event: return ret; } -static int dln2_adc_remove(struct platform_device *pdev) +static void dln2_adc_remove(struct platform_device *pdev) { struct iio_dev *indio_dev = platform_get_drvdata(pdev); iio_device_unregister(indio_dev); dln2_unregister_event_cb(pdev, DLN2_ADC_CONDITION_MET_EV); - return 0; } static struct platform_driver dln2_adc_driver = { .driver.name = DLN2_ADC_MOD_NAME, .probe = dln2_adc_probe, - .remove = dln2_adc_remove, + .remove_new = dln2_adc_remove, }; module_platform_driver(dln2_adc_driver);