diff mbox series

[39/59] dma: sh: rcar-dmac: Convert to platform remove callback returning void

Message ID 20230919133207.1400430-40-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 8ca342994ab8abda069c4b918aab5fa6b8c1614f
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/sh/rcar-dmac.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 641d689d17ff..40482cb73d79 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1990,7 +1990,7 @@  static int rcar_dmac_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int rcar_dmac_remove(struct platform_device *pdev)
+static void rcar_dmac_remove(struct platform_device *pdev)
 {
 	struct rcar_dmac *dmac = platform_get_drvdata(pdev);
 
@@ -1998,8 +1998,6 @@  static int rcar_dmac_remove(struct platform_device *pdev)
 	dma_async_device_unregister(&dmac->engine);
 
 	pm_runtime_disable(&pdev->dev);
-
-	return 0;
 }
 
 static void rcar_dmac_shutdown(struct platform_device *pdev)
@@ -2041,7 +2039,7 @@  static struct platform_driver rcar_dmac_driver = {
 		.of_match_table = rcar_dmac_of_ids,
 	},
 	.probe		= rcar_dmac_probe,
-	.remove		= rcar_dmac_remove,
+	.remove_new	= rcar_dmac_remove,
 	.shutdown	= rcar_dmac_shutdown,
 };