mfd: tps65911-comparator: Convert to platform remove callback returning void

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>
Link: https://lore.kernel.org/r/20231123165627.492259-18-u.kleine-koenig@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/mfd/tps65911-comparator.c b/drivers/mfd/tps65911-comparator.c
index 8f4210075913c7d746e7ca10ec59eab5b8ef2675..f206a9c50e9d84ac71e86a6cc3294008093a7809 100644 (file)
--- a/drivers/mfd/tps65911-comparator.c
+++ b/drivers/mfd/tps65911-comparator.c
@@ -140,15 +140,13 @@ static int tps65911_comparator_probe(struct platform_device *pdev)
        return ret;
 }
 
-static int tps65911_comparator_remove(struct platform_device *pdev)
+static void tps65911_comparator_remove(struct platform_device *pdev)
 {
        struct tps65910 *tps65910;
 
        tps65910 = dev_get_drvdata(pdev->dev.parent);
        device_remove_file(&pdev->dev, &dev_attr_comp2_threshold);
        device_remove_file(&pdev->dev, &dev_attr_comp1_threshold);
-
-       return 0;
 }
 
 static struct platform_driver tps65911_comparator_driver = {
@@ -156,7 +154,7 @@ static struct platform_driver tps65911_comparator_driver = {
                .name = "tps65911-comparator",
        },
        .probe = tps65911_comparator_probe,
-       .remove = tps65911_comparator_remove,
+       .remove_new = tps65911_comparator_remove,
 };
 
 static int __init tps65911_comparator_init(void)