[Nouveau] [PATCH 33/53] drm/nouveau: Convert to platform remove callback returning void

Uwe Kleine-König
Sun, 07 May 2023 16:25:56 -0000

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-K?nig <u.kleine-koenig at pengutronix.de>
---
 drivers/gpu/drm/nouveau/nouveau_platform.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_platform.c
b/drivers/gpu/drm/nouveau/nouveau_platform.c
index 23cd43a7fd19..bf2dc7567ea4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_platform.c
+++ b/drivers/gpu/drm/nouveau/nouveau_platform.c
@@ -43,11 +43,10 @@ static int nouveau_platform_probe(struct platform_device
*pdev)
 	return 0;
 }

-static int nouveau_platform_remove(struct platform_device *pdev)
+static void nouveau_platform_remove(struct platform_device *pdev)
 {
 	struct drm_device *dev = platform_get_drvdata(pdev);
 	nouveau_drm_device_remove(dev);
-	return 0;
 }

 #if IS_ENABLED(CONFIG_OF)
@@ -93,5 +92,5 @@ struct platform_driver nouveau_platform_driver = {
 		.of_match_table = of_match_ptr(nouveau_platform_match),
 	},
 	.probe = nouveau_platform_probe,
-	.remove = nouveau_platform_remove,
+	.remove_new = nouveau_platform_remove,
 };
--
2.39.2