[PATCH 010/117] media: tegra_cec: Convert to platform remove callback returning void

Uwe Kleine-König
2023-03-26T14:32:39Z

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@pengutronix.de>
---
drivers/media/cec/platform/tegra/tegra_cec.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/media/cec/platform/tegra/tegra_cec.c b/drivers/media/cec/platform/tegra/tegra_cec.c
index 5e907395ca2e..04dc06e3c42a 100644
--- a/drivers/media/cec/platform/tegra/tegra_cec.c
+++ b/drivers/media/cec/platform/tegra/tegra_cec.c
@@ -421,7 +421,7 @@ static int tegra_cec_probe(struct platform_device *pdev)
return ret;
}

-static int tegra_cec_remove(struct platform_device *pdev)
+static void tegra_cec_remove(struct platform_device *pdev)
{
struct tegra_cec *cec = platform_get_drvdata(pdev);

@@ -429,8 +429,6 @@ static int tegra_cec_remove(struct platform_device *pdev)

cec_notifier_cec_adap_unregister(cec->notifier, cec->adap);
cec_unregister_adapter(cec->adap);
-
- return 0;
}

#ifdef CONFIG_PM
@@ -467,7 +465,7 @@ static struct platform_driver tegra_cec_driver = {
.of_match_table = of_match_ptr(tegra_cec_of_match),
},
.probe = tegra_cec_probe,
- .remove = tegra_cec_remove,
+ .remove_new = tegra_cec_remove,

#ifdef CONFIG_PM
.suspend = tegra_cec_suspend,
--
2.39.2