diff mbox series

[07/59] dma: bestcomm: bestcomm: Convert to platform remove callback returning void

Message ID 20230919133207.1400430-8-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 7689bca111997e0d7a12cf6457fc26a52b8c800f
Headers show
Series dma: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König Sept. 19, 2023, 1:31 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() is 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/dma/bestcomm/bestcomm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/dma/bestcomm/bestcomm.c b/drivers/dma/bestcomm/bestcomm.c
index 80096f94032d..0bbaa7620bdd 100644
--- a/drivers/dma/bestcomm/bestcomm.c
+++ b/drivers/dma/bestcomm/bestcomm.c
@@ -455,7 +455,7 @@  static int mpc52xx_bcom_probe(struct platform_device *op)
 }
 
 
-static int mpc52xx_bcom_remove(struct platform_device *op)
+static void mpc52xx_bcom_remove(struct platform_device *op)
 {
 	/* Clean up the engine */
 	bcom_engine_cleanup();
@@ -473,8 +473,6 @@  static int mpc52xx_bcom_remove(struct platform_device *op)
 	/* Release memory */
 	kfree(bcom_eng);
 	bcom_eng = NULL;
-
-	return 0;
 }
 
 static const struct of_device_id mpc52xx_bcom_of_match[] = {
@@ -488,7 +486,7 @@  MODULE_DEVICE_TABLE(of, mpc52xx_bcom_of_match);
 
 static struct platform_driver mpc52xx_bcom_of_platform_driver = {
 	.probe		= mpc52xx_bcom_probe,
-	.remove		= mpc52xx_bcom_remove,
+	.remove_new	= mpc52xx_bcom_remove,
 	.driver = {
 		.name = DRIVER_NAME,
 		.of_match_table = mpc52xx_bcom_of_match,