diff options
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/mutex.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c index cd8598aa0426..935116723a3d 100644 --- a/kernel/locking/mutex.c +++ b/kernel/locking/mutex.c @@ -785,6 +785,10 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, if (!use_ww_ctx) { /* add waiting tasks to the end of the waitqueue (FIFO): */ list_add_tail(&waiter.list, &lock->wait_list); + +#ifdef CONFIG_DEBUG_MUTEXES + waiter.ww_ctx = MUTEX_POISON_WW_CTX; +#endif } else { /* Add in stamp order, waking up waiters that must back off. */ ret = __ww_mutex_add_waiter(&waiter, lock, ww_ctx); |