summaryrefslogtreecommitdiff
path: root/drivers/watchdog/watchdog_core.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/watchdog/watchdog_core.c')
-rw-r--r--drivers/watchdog/watchdog_core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/watchdog/watchdog_core.c b/drivers/watchdog/watchdog_core.c
index d9b3c9c023c4..c1658fe73d58 100644
--- a/drivers/watchdog/watchdog_core.c
+++ b/drivers/watchdog/watchdog_core.c
@@ -199,7 +199,7 @@ static int __watchdog_register_device(struct watchdog_device *wdd)
return -EINVAL;
/* Mandatory operations need to be supported */
- if (wdd->ops->start == NULL || wdd->ops->stop == NULL)
+ if (!wdd->ops->start || (!wdd->ops->stop && !wdd->max_hw_heartbeat_ms))
return -EINVAL;
watchdog_check_min_max_timeout(wdd);