| Message ID | 20230712081258.29254-1-frank.li@vivo.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [01/27] thermal/drivers/amlogic: Convert to platform remove callback returning void | expand |
On Wed, Jul 12, 2023 at 04:12:32PM +0800, Yangtao Li 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. > > Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > Signed-off-by: Yangtao Li <frank.li@vivo.com> > --- > drivers/thermal/amlogic_thermal.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/thermal/amlogic_thermal.c b/drivers/thermal/amlogic_thermal.c > index 756b218880a7..a95c8959e5af 100644 > --- a/drivers/thermal/amlogic_thermal.c > +++ b/drivers/thermal/amlogic_thermal.c > @@ -293,11 +293,11 @@ static int amlogic_thermal_probe(struct platform_device *pdev) > return ret; > } > > -static int amlogic_thermal_remove(struct platform_device *pdev) > +static void amlogic_thermal_remove(struct platform_device *pdev) > { > struct amlogic_thermal *data = platform_get_drvdata(pdev); > > - return amlogic_thermal_disable(data); > + amlogic_thermal_disable(data); I'd make amlogic_thermal_disable() return void, too. Otherwise looks ok. Best regards Uwe
diff --git a/drivers/thermal/amlogic_thermal.c b/drivers/thermal/amlogic_thermal.c index 756b218880a7..a95c8959e5af 100644 --- a/drivers/thermal/amlogic_thermal.c +++ b/drivers/thermal/amlogic_thermal.c @@ -293,11 +293,11 @@ static int amlogic_thermal_probe(struct platform_device *pdev) return ret; } -static int amlogic_thermal_remove(struct platform_device *pdev) +static void amlogic_thermal_remove(struct platform_device *pdev) { struct amlogic_thermal *data = platform_get_drvdata(pdev); - return amlogic_thermal_disable(data); + amlogic_thermal_disable(data); } static int __maybe_unused amlogic_thermal_suspend(struct device *dev) @@ -324,7 +324,7 @@ static struct platform_driver amlogic_thermal_driver = { .of_match_table = of_amlogic_thermal_match, }, .probe = amlogic_thermal_probe, - .remove = amlogic_thermal_remove, + .remove_new = amlogic_thermal_remove, }; module_platform_driver(amlogic_thermal_driver);
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. Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Yangtao Li <frank.li@vivo.com> --- drivers/thermal/amlogic_thermal.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)