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watchdog: nic7018: 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 (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>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230303213716.2123717-19-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Uwe Kleine-König 2023-03-03 22:37:00 +01:00 committed by Wim Van Sebroeck
parent 62b6a8507c
commit 55b0fb4537
1 changed files with 2 additions and 4 deletions
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6
drivers/watchdog/nic7018_wdt.c
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@ -218,7 +218,7 @@ static int nic7018_probe(struct platform_device *pdev)
return 0;
}
static int nic7018_remove(struct platform_device *pdev)
static void nic7018_remove(struct platform_device *pdev)
{
struct nic7018_wdt *wdt = platform_get_drvdata(pdev);
@ -226,8 +226,6 @@ static int nic7018_remove(struct platform_device *pdev)
/* Lock WDT register */
outb(LOCK, wdt->io_base + WDT_REG_LOCK);
return 0;
}
static const struct acpi_device_id nic7018_device_ids[] = {
@ -238,7 +236,7 @@ MODULE_DEVICE_TABLE(acpi, nic7018_device_ids);
static struct platform_driver watchdog_driver = {
.probe = nic7018_probe,
.remove = nic7018_remove,
.remove_new = nic7018_remove,
.driver = {
.name = KBUILD_MODNAME,
.acpi_match_table = ACPI_PTR(nic7018_device_ids),