On 08/28/2018 03:13 AM, Wolfram Sang wrote:
We want to go into a sane state when unregistering. Currently, it
happens that the watchdog stops when unbinding because of RuntimePM
stopping the core clock. When rebinding, the core clock gets reactivated
and the watchdog fires even though it hasn't been opened by userspace
yet. Strange scenario, yes, but sane state is much preferred anyhow.
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/watchdog/renesas_wdt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index 88d81feba4e6..f45cb183fa75 100644
--- a/drivers/watchdog/renesas_wdt.c
+++ b/drivers/watchdog/renesas_wdt.c
@@ -234,6 +234,7 @@ static int rwdt_probe(struct platform_device *pdev)
watchdog_set_drvdata(&priv->wdev, priv);
watchdog_set_nowayout(&priv->wdev, nowayout);
watchdog_set_restart_priority(&priv->wdev, 0);
+ watchdog_stop_on_unregister(&priv->wdev);
/* This overrides the default timeout only if DT configuration was found */
ret = watchdog_init_timeout(&priv->wdev, 0, &pdev->dev);
