From: Uwe Kleine-König Date: Fri, 3 Mar 2023 21:36:56 +0000 (+0100) Subject: watchdog: ib700wdt: Convert to platform remove callback returning void X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=40529e7ed5c98b4bfbaec62b8e13e1e647d46df8;p=linux.git watchdog: ib700wdt: 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 (mostly) ignored 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. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20230303213716.2123717-15-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c index a0ddedc362fc8..39ea97009abdb 100644 --- a/drivers/watchdog/ib700wdt.c +++ b/drivers/watchdog/ib700wdt.c @@ -316,14 +316,13 @@ out_nostopreg: return res; } -static int ibwdt_remove(struct platform_device *dev) +static void ibwdt_remove(struct platform_device *dev) { misc_deregister(&ibwdt_miscdev); release_region(WDT_START, 1); #if WDT_START != WDT_STOP release_region(WDT_STOP, 1); #endif - return 0; } static void ibwdt_shutdown(struct platform_device *dev) @@ -333,7 +332,7 @@ static void ibwdt_shutdown(struct platform_device *dev) } static struct platform_driver ibwdt_driver = { - .remove = ibwdt_remove, + .remove_new = ibwdt_remove, .shutdown = ibwdt_shutdown, .driver = { .name = DRV_NAME,