[PATCH 08/12] drm/tegra: hdmi: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Wed Mar 22 17:02:19 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/tegra/hdmi.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index 6798eea317df..6eac54ae1205 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -1874,15 +1874,13 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int tegra_hdmi_remove(struct platform_device *pdev)
+static void tegra_hdmi_remove(struct platform_device *pdev)
 {
 	struct tegra_hdmi *hdmi = platform_get_drvdata(pdev);
 
 	host1x_client_unregister(&hdmi->client);
 
 	tegra_output_remove(&hdmi->output);
-
-	return 0;
 }
 
 struct platform_driver tegra_hdmi_driver = {
@@ -1891,5 +1889,5 @@ struct platform_driver tegra_hdmi_driver = {
 		.of_match_table = tegra_hdmi_of_match,
 	},
 	.probe = tegra_hdmi_probe,
-	.remove = tegra_hdmi_remove,
+	.remove_new = tegra_hdmi_remove,
 };
-- 
2.39.2



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