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thermal: rcar_gen3: Convert to platform remove callback returning void

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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 ignored (apart
from emitting a warning) 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. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

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>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Uwe Kleine-König 2023-09-27 21:37:25 +02:00 committed by Rafael J. Wysocki
parent 2128ba4639
commit a07f4487bc
1 changed files with 2 additions and 4 deletions
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6
drivers/thermal/rcar_gen3_thermal.c
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@ -432,14 +432,12 @@ static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, rcar_gen3_thermal_dt_ids);
static int rcar_gen3_thermal_remove(struct platform_device *pdev)
static void rcar_gen3_thermal_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
pm_runtime_put(dev);
pm_runtime_disable(dev);
return 0;
}
static void rcar_gen3_hwmon_action(void *data)
@ -594,7 +592,7 @@ static struct platform_driver rcar_gen3_thermal_driver = {
.of_match_table = rcar_gen3_thermal_dt_ids,
},
.probe = rcar_gen3_thermal_probe,
.remove = rcar_gen3_thermal_remove,
.remove_new = rcar_gen3_thermal_remove,
};
module_platform_driver(rcar_gen3_thermal_driver);