From 48309b52b175586a9eb5a655f7ea04bb21c8a295 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 20 Sep 2023 14:57:52 +0200 Subject: [PATCH] Input: ideapad_slidebar - convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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/20230920125829.1478827-16-u.kleine-koenig@pengutronix.de Signed-off-by: Dmitry Torokhov --- drivers/input/misc/ideapad_slidebar.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/input/misc/ideapad_slidebar.c b/drivers/input/misc/ideapad_slidebar.c index 68f1c584da05..fa4e7f67d713 100644 --- a/drivers/input/misc/ideapad_slidebar.c +++ b/drivers/input/misc/ideapad_slidebar.c @@ -256,20 +256,18 @@ err_release_ports: return err; } -static int ideapad_remove(struct platform_device *pdev) +static void ideapad_remove(struct platform_device *pdev) { i8042_remove_filter(slidebar_i8042_filter); input_unregister_device(slidebar_input_dev); release_region(IDEAPAD_BASE, 3); - - return 0; } static struct platform_driver slidebar_drv = { .driver = { .name = "ideapad_slidebar", }, - .remove = ideapad_remove, + .remove_new = ideapad_remove, }; static int __init ideapad_dmi_check(const struct dmi_system_id *id)