On Sun, Mar 26, 2023 at 04:30:37PM +0200, Uwe Kleine-König wrote: > 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(-) Acked-by: Thierry Reding <treding@nvidia.com>
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,
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(-)