[PATCH 03/41] rtc: ab8500: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Sat Mar 4 05:29:50 PST 2023


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 at pengutronix.de>
---
 drivers/rtc/rtc-ab8500.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c
index ea33e149d545..75bb2ac9005c 100644
--- a/drivers/rtc/rtc-ab8500.c
+++ b/drivers/rtc/rtc-ab8500.c
@@ -392,12 +392,10 @@ static int ab8500_rtc_probe(struct platform_device *pdev)
 	return devm_rtc_register_device(rtc);
 }
 
-static int ab8500_rtc_remove(struct platform_device *pdev)
+static void ab8500_rtc_remove(struct platform_device *pdev)
 {
 	dev_pm_clear_wake_irq(&pdev->dev);
 	device_init_wakeup(&pdev->dev, false);
-
-	return 0;
 }
 
 static struct platform_driver ab8500_rtc_driver = {
@@ -405,7 +403,7 @@ static struct platform_driver ab8500_rtc_driver = {
 		.name = "ab8500-rtc",
 	},
 	.probe	= ab8500_rtc_probe,
-	.remove = ab8500_rtc_remove,
+	.remove_new = ab8500_rtc_remove,
 	.id_table = ab85xx_rtc_ids,
 };
 
-- 
2.39.1




More information about the linux-arm-kernel mailing list