diff options
Diffstat (limited to 'drivers/watchdog/watchdog_dev.c')
| -rw-r--r-- | drivers/watchdog/watchdog_dev.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index 00a611293065..2fb4cecd50d8 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -120,6 +120,11 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd, return put_user(val, p); case WDIOC_GETBOOTSTATUS: return put_user(wdd->bootstatus, p); + case WDIOC_KEEPALIVE: + if (!(wdd->info->options & WDIOF_KEEPALIVEPING)) + return -EOPNOTSUPP; + watchdog_ping(wdd); + return 0; default: return -ENOTTY; } |