From 6061302092305a0584aacf0d82a9d5e66653884c Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Sun, 17 Sep 2023 15:09:47 +0200 Subject: leds: Convert all platform drivers to return 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() is renamed to .remove(). All platform drivers below drivers/leds/ unconditionally return zero in their remove callback and so can be converted trivially to the variant returning void. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230917130947.1122198-1-u.kleine-koenig@pengutronix.de Signed-off-by: Lee Jones --- drivers/leds/leds-wm831x-status.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/leds/leds-wm831x-status.c') diff --git a/drivers/leds/leds-wm831x-status.c b/drivers/leds/leds-wm831x-status.c index c48b80574f02..70b32d80f960 100644 --- a/drivers/leds/leds-wm831x-status.c +++ b/drivers/leds/leds-wm831x-status.c @@ -280,13 +280,11 @@ static int wm831x_status_probe(struct platform_device *pdev) return 0; } -static int wm831x_status_remove(struct platform_device *pdev) +static void wm831x_status_remove(struct platform_device *pdev) { struct wm831x_status *drvdata = platform_get_drvdata(pdev); led_classdev_unregister(&drvdata->cdev); - - return 0; } static struct platform_driver wm831x_status_driver = { @@ -294,7 +292,7 @@ static struct platform_driver wm831x_status_driver = { .name = "wm831x-status", }, .probe = wm831x_status_probe, - .remove = wm831x_status_remove, + .remove_new = wm831x_status_remove, }; module_platform_driver(wm831x_status_driver); -- cgit v1.2.3