diff mbox series

[32/59] dma: ppc4xx: adma: Convert to platform remove callback returning void

Message ID 20230919133207.1400430-33-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 5f8f212fb416dc3600046955fb008732a512fa5c
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/ppc4xx/adma.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index f9b82dff3387..bbb60a970dab 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -4230,7 +4230,7 @@  static int ppc440spe_adma_probe(struct platform_device *ofdev)
 /**
  * ppc440spe_adma_remove - remove the asynch device
  */
-static int ppc440spe_adma_remove(struct platform_device *ofdev)
+static void ppc440spe_adma_remove(struct platform_device *ofdev)
 {
 	struct ppc440spe_adma_device *adev = platform_get_drvdata(ofdev);
 	struct device_node *np = ofdev->dev.of_node;
@@ -4278,7 +4278,6 @@  static int ppc440spe_adma_remove(struct platform_device *ofdev)
 	of_address_to_resource(np, 0, &res);
 	release_mem_region(res.start, resource_size(&res));
 	kfree(adev);
-	return 0;
 }
 
 /*
@@ -4550,7 +4549,7 @@  MODULE_DEVICE_TABLE(of, ppc440spe_adma_of_match);
 
 static struct platform_driver ppc440spe_adma_driver = {
 	.probe = ppc440spe_adma_probe,
-	.remove = ppc440spe_adma_remove,
+	.remove_new = ppc440spe_adma_remove,
 	.driver = {
 		.name = "PPC440SP(E)-ADMA",
 		.of_match_table = ppc440spe_adma_of_match,