bug#6538

ndb: Fix return value in index_last wo/ rows


sql/ha_ndbcluster.cc:
  Return correct when not finding any row from index_last

sql/ha_ndbcluster.cc

@@ -2318,7 +2318,7 @@ int ha_ndbcluster::index_last(byte *buf)
       DBUG_RETURN(0);
     }
   }
-  DBUG_RETURN(1);
+  DBUG_RETURN(res);
 }