diff options
Diffstat (limited to 'drivers/watchdog/watchdog_dev.c')
| -rw-r--r-- | drivers/watchdog/watchdog_dev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index e7134a5979c..d33520d0b4c 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -220,6 +220,9 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd, return -EOPNOTSUPP; if (get_user(val, p)) return -EFAULT; + if ((wdd->max_timeout != 0) && + (val < wdd->min_timeout || val > wdd->max_timeout)) + return -EINVAL; err = wdd->ops->set_timeout(wdd, val); if (err < 0) return err; |