diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2023-11-06 16:48:13 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2023-12-17 16:14:20 +0100 |
| commit | da24118732925d5fd5b9ce8aff58b213a2e051ed (patch) | |
| tree | 018b141b3940bf0febe584ef96542db8cb46f434 /drivers/watchdog | |
| parent | watchdog: starfive-wdt: Convert to platform remove callback returning void (diff) | |
| download | linux-da24118732925d5fd5b9ce8aff58b213a2e051ed.tar.xz linux-da24118732925d5fd5b9ce8aff58b213a2e051ed.zip | |
watchdog: txx9wdt: 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>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20231106154807.3866712-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/txx9wdt.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c index f900c519ed63..8d5f67acbff2 100644 --- a/drivers/watchdog/txx9wdt.c +++ b/drivers/watchdog/txx9wdt.c @@ -145,12 +145,11 @@ exit: return ret; } -static int txx9wdt_remove(struct platform_device *dev) +static void txx9wdt_remove(struct platform_device *dev) { watchdog_unregister_device(&txx9wdt); clk_disable_unprepare(txx9_imclk); clk_put(txx9_imclk); - return 0; } static void txx9wdt_shutdown(struct platform_device *dev) @@ -160,7 +159,7 @@ static void txx9wdt_shutdown(struct platform_device *dev) static struct platform_driver txx9wdt_driver = { .probe = txx9wdt_probe, - .remove = txx9wdt_remove, + .remove_new = txx9wdt_remove, .shutdown = txx9wdt_shutdown, .driver = { .name = "txx9wdt", |