From 839cf59b5596abcdfbcdc4278a7bd4f8da32e1b2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 10 Jan 2024 16:42:49 +0100 Subject: [PATCH] macintosh: windfarm_pm112: 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 Signed-off-by: Michael Ellerman Link: https://msgid.link/eac991c7f2267237382f77bc15c016ff62e1fbb7.1704900449.git.u.kleine-koenig@pengutronix.de --- drivers/macintosh/windfarm_pm112.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/macintosh/windfarm_pm112.c b/drivers/macintosh/windfarm_pm112.c index d1dec314ae30..876b4d8cbe37 100644 --- a/drivers/macintosh/windfarm_pm112.c +++ b/drivers/macintosh/windfarm_pm112.c @@ -662,16 +662,14 @@ static int wf_pm112_probe(struct platform_device *dev) return 0; } -static int wf_pm112_remove(struct platform_device *dev) +static void wf_pm112_remove(struct platform_device *dev) { wf_unregister_client(&pm112_events); - /* should release all sensors and controls */ - return 0; } static struct platform_driver wf_pm112_driver = { .probe = wf_pm112_probe, - .remove = wf_pm112_remove, + .remove_new = wf_pm112_remove, .driver = { .name = "windfarm", },