This condition should NEVER be hit, but in case the started thread is unable to…

This condition should NEVER be hit, but in case the started thread is unable to locate itself in the EVENT_DISOATCH_QUEUE_THREADS array, it's best to return null here and kill the unexpected event thread rather than segfault FS by writing outside of the bounds of the EVENT_DISPATCH_QUEUE_RUNNING array.

src/switch_event.c

@@ -26,7 +26,7 @@
  * Anthony Minessale II <anthm@freeswitch.org>
  * Michael Jerris <mike@jerris.com>
  * Paul D. Tinsley <pdt at jackhammer.org>
- *
+ * William King <william.king@quentustech.com>
  *
  * switch_event.c -- Event System
  *
@@ -254,6 +254,10 @@ static void *SWITCH_THREAD_FUNC switch_event_dispatch_thread(switch_thread_t *th
 		}
 	}
 
+	if ( my_id >= MAX_DISPATCH_VAL ) {
+		return NULL;
+	}
+
 	EVENT_DISPATCH_QUEUE_RUNNING[my_id] = 1;
 	switch_mutex_unlock(EVENT_QUEUE_MUTEX);