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Input: max8997_haptic - 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>
Link: https://lore.kernel.org/r/20230920125829.1478827-18-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Uwe Kleine-König 2023-09-20 14:57:54 +02:00 committed by Dmitry Torokhov
parent 6d3a5b8254
commit 3254392ead
1 changed files with 2 additions and 4 deletions
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6
drivers/input/misc/max8997_haptic.c
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@ -351,7 +351,7 @@ err_free_mem:
return error; return error;
} }
static int max8997_haptic_remove(struct platform_device *pdev) static void max8997_haptic_remove(struct platform_device *pdev)
{ {
struct max8997_haptic *chip = platform_get_drvdata(pdev); struct max8997_haptic *chip = platform_get_drvdata(pdev);
@ -362,8 +362,6 @@ static int max8997_haptic_remove(struct platform_device *pdev)
pwm_put(chip->pwm); pwm_put(chip->pwm);
kfree(chip); kfree(chip);
return 0;
} }
static int max8997_haptic_suspend(struct device *dev) static int max8997_haptic_suspend(struct device *dev)
@ -391,7 +389,7 @@ static struct platform_driver max8997_haptic_driver = {
.pm = pm_sleep_ptr(&max8997_haptic_pm_ops), .pm = pm_sleep_ptr(&max8997_haptic_pm_ops),
}, },
.probe = max8997_haptic_probe, .probe = max8997_haptic_probe,
.remove = max8997_haptic_remove, .remove_new = max8997_haptic_remove,
.id_table = max8997_haptic_id, .id_table = max8997_haptic_id,
}; };
module_platform_driver(max8997_haptic_driver); module_platform_driver(max8997_haptic_driver);