Commit 40529e7e authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Wim Van Sebroeck
Browse files

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: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230303213716.2123717-15-u.kleine-koenig@pengutronix.de


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent 5216a0a9

drivers/watchdog/ib700wdt.c

+2 −3
Original line number Diff line number Diff line
@@ -316,14 +316,13 @@ static int __init ibwdt_probe(struct platform_device *dev) 
	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,