diff options
Diffstat (limited to 'drivers/watchdog/watchdog_dev.c')
| -rw-r--r-- | drivers/watchdog/watchdog_dev.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index 1199da0f98cf..8558da912c42 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -226,7 +226,6 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd, err = wdd->ops->set_timeout(wdd, val); if (err < 0) return err; - wdd->timeout = val; /* If the watchdog is active then we send a keepalive ping * to make sure that the watchdog keep's running (and if * possible that it takes the new timeout) */ @@ -237,6 +236,11 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd, if (wdd->timeout == 0) return -EOPNOTSUPP; return put_user(wdd->timeout, p); + case WDIOC_GETTIMELEFT: + if (!wdd->ops->get_timeleft) + return -EOPNOTSUPP; + + return put_user(wdd->ops->get_timeleft(wdd), p); default: return -ENOTTY; } @@ -347,7 +351,7 @@ int watchdog_dev_register(struct watchdog_device *watchdog) /* Only one device can register for /dev/watchdog */ if (test_and_set_bit(0, &watchdog_dev_busy)) { - pr_err("only one watchdog can use /dev/watchdog.\n"); + pr_err("only one watchdog can use /dev/watchdog\n"); return -EBUSY; } @@ -355,8 +359,8 @@ int watchdog_dev_register(struct watchdog_device *watchdog) err = misc_register(&watchdog_miscdev); if (err != 0) { - pr_err("%s: cannot register miscdev on minor=%d (err=%d).\n", - watchdog->info->identity, WATCHDOG_MINOR, err); + pr_err("%s: cannot register miscdev on minor=%d (err=%d)\n", + watchdog->info->identity, WATCHDOG_MINOR, err); goto out; } @@ -383,8 +387,8 @@ int watchdog_dev_unregister(struct watchdog_device *watchdog) /* We can only unregister the watchdog device that was registered */ if (watchdog != wdd) { - pr_err("%s: watchdog was not registered as /dev/watchdog.\n", - watchdog->info->identity); + pr_err("%s: watchdog was not registered as /dev/watchdog\n", + watchdog->info->identity); return -ENODEV; } |