diff options
| -rw-r--r-- | kernel/watchdog.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 262691ba62b7..6c91b6b72f51 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -990,6 +990,7 @@ static int proc_watchdog_common(int which, const struct ctl_table *table, int wr mutex_lock(&watchdog_mutex); + old = *param; if (!write) { /* * On read synchronize the userspace interface. This is a @@ -997,8 +998,8 @@ static int proc_watchdog_common(int which, const struct ctl_table *table, int wr */ *param = (watchdog_enabled & which) != 0; err = proc_dointvec_minmax(table, write, buffer, lenp, ppos); + *param = old; } else { - old = READ_ONCE(*param); err = proc_dointvec_minmax(table, write, buffer, lenp, ppos); if (!err && old != READ_ONCE(*param)) proc_watchdog_update(); |