fix

qirt.c

@@ -332,7 +332,7 @@ static void qi_linkedlist_delete(qi_linkedlist_t *ll)
   qi_free(ll);
 }
 
-static qi_linkedlist_t *qi_linkedlist_destroy(qi_linkedlist_t *ll)
+static void qi_linkedlist_destroy(qi_linkedlist_t *ll)
 {
   qi_linkedlist_t *lln = ll;