From cb299d2a561dfd6816d120deac096562d5f111b5 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 19 Sep 2023 19:48:49 +0200 Subject: [PATCH] iio: adc: dln2: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 --- drivers/iio/adc/dln2-adc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/iio/adc/dln2-adc.c b/drivers/iio/adc/dln2-adc.c index 97d162a3cba4..06cfbbabaf8d 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); -- 2.25.1