[PATCH 50/53] drm/tve200: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Sun May 7 16:26:13 UTC 2023


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-König <u.kleine-koenig at pengutronix.de>
---
 drivers/gpu/drm/tve200/tve200_drv.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/tve200/tve200_drv.c b/drivers/gpu/drm/tve200/tve200_drv.c
index 0d05c386d303..0d98939d7aed 100644
--- a/drivers/gpu/drm/tve200/tve200_drv.c
+++ b/drivers/gpu/drm/tve200/tve200_drv.c
@@ -238,7 +238,7 @@ static int tve200_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int tve200_remove(struct platform_device *pdev)
+static void tve200_remove(struct platform_device *pdev)
 {
 	struct drm_device *drm = platform_get_drvdata(pdev);
 	struct tve200_drm_dev_private *priv = drm->dev_private;
@@ -249,8 +249,6 @@ static int tve200_remove(struct platform_device *pdev)
 	drm_mode_config_cleanup(drm);
 	clk_disable_unprepare(priv->pclk);
 	drm_dev_put(drm);
-
-	return 0;
 }
 
 static const struct of_device_id tve200_of_match[] = {
@@ -266,7 +264,7 @@ static struct platform_driver tve200_driver = {
 		.of_match_table = of_match_ptr(tve200_of_match),
 	},
 	.probe = tve200_probe,
-	.remove = tve200_remove,
+	.remove_new = tve200_remove,
 };
 drm_module_platform_driver(tve200_driver);
 
-- 
2.39.2



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