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[14/34] watchdog: ib700wdt: Convert to platform remove callback returning void

Message ID 20230303213716.2123717-15-u.kleine-koenig@pengutronix.de
State New
Headers show
Series watchdog: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König March 3, 2023, 9:36 p.m. UTC
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 <u.kleine-koenig@pengutronix.de>
---
 drivers/watchdog/ib700wdt.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c
index a0ddedc362fc..39ea97009abd 100644
--- a/drivers/watchdog/ib700wdt.c
+++ b/drivers/watchdog/ib700wdt.c
@@ -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,