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[4/5] PM / devfreq: rk3399_dmc: Convert to platform remove callback returning void

Message ID ead8f47ba6121feb651be0b93d87dce3107ca546.1709587301.git.u.kleine-koenig@pengutronix.de
State Accepted
Commit 8eba5b693442fcfc7bfdd6402cd191250ce3e276
Headers show
Series PM / devfreq: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König March 4, 2024, 9:28 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 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() will be renamed to .remove().

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/devfreq/rk3399_dmc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c
index fd2c5ffedf41..d405cee92c25 100644
--- a/drivers/devfreq/rk3399_dmc.c
+++ b/drivers/devfreq/rk3399_dmc.c
@@ -459,13 +459,11 @@  static int rk3399_dmcfreq_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int rk3399_dmcfreq_remove(struct platform_device *pdev)
+static void rk3399_dmcfreq_remove(struct platform_device *pdev)
 {
 	struct rk3399_dmcfreq *dmcfreq = dev_get_drvdata(&pdev->dev);
 
 	devfreq_event_disable_edev(dmcfreq->edev);
-
-	return 0;
 }
 
 static const struct of_device_id rk3399dmc_devfreq_of_match[] = {
@@ -476,7 +474,7 @@  MODULE_DEVICE_TABLE(of, rk3399dmc_devfreq_of_match);
 
 static struct platform_driver rk3399_dmcfreq_driver = {
 	.probe	= rk3399_dmcfreq_probe,
-	.remove = rk3399_dmcfreq_remove,
+	.remove_new = rk3399_dmcfreq_remove,
 	.driver = {
 		.name	= "rk3399-dmc-freq",
 		.pm	= &rk3399_dmcfreq_pm,