779 static void wait_for_zero_refcount(struct module *mod)
 780 {
 781         /* Since we might sleep for some time, release the mutex first */
 782         mutex_unlock(&module_mutex);
 783         for (;;) {
 784                 DEBUGP("Looking at refcount...\n");
 785                 set_current_state(TASK_UNINTERRUPTIBLE);
 786                 if (module_refcount(mod) == 0)
 787                         break;
 788                 schedule();
 789         }
 790         current->state = TASK_RUNNING;
 791         mutex_lock(&module_mutex);
 792 }