diff options
| -rw-r--r-- | kernel/watchdog.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 7357842da933..13fdda1a4c91 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -857,6 +857,7 @@ static int proc_watchdog_common(int which, struct ctl_table *table, int write, int err, old, new; int *watchdog_param = (int *)table->data; + get_online_cpus(); mutex_lock(&watchdog_proc_mutex); if (watchdog_suspended) { @@ -908,6 +909,7 @@ static int proc_watchdog_common(int which, struct ctl_table *table, int write, } out: mutex_unlock(&watchdog_proc_mutex); + put_online_cpus(); return err; } @@ -949,6 +951,7 @@ int proc_watchdog_thresh(struct ctl_table *table, int write, { int err, old; + get_online_cpus(); mutex_lock(&watchdog_proc_mutex); if (watchdog_suspended) { @@ -974,6 +977,7 @@ int proc_watchdog_thresh(struct ctl_table *table, int write, } out: mutex_unlock(&watchdog_proc_mutex); + put_online_cpus(); return err; } @@ -988,6 +992,7 @@ int proc_watchdog_cpumask(struct ctl_table *table, int write, { int err; + get_online_cpus(); mutex_lock(&watchdog_proc_mutex); if (watchdog_suspended) { @@ -1015,6 +1020,7 @@ int proc_watchdog_cpumask(struct ctl_table *table, int write, } out: mutex_unlock(&watchdog_proc_mutex); + put_online_cpus(); return err; } |