free_lock
extern _IMPEXP_KERNEL int free_lock(lock *l);
#define mutex_destroy free_lock
extern _IMPEXP_KERNEL int free_lock(lock *l);
free_lock(&pool->lock);
free_lock(&root->l);
free_lock(&ns->l);
free_lock(&ns->l);
free_lock(&node->l);
free_lock(&n->l);
extern _IMPEXP_KERNEL int free_lock(lock *l);
free_lock(&driverlock);