--- 32bbce9718f0626b98cc37e09b14faa51a5cc16f
+++ 65cac8cc8921254718d835860a9ad2871d13b823
@@ -697,7 +697,7 @@ static int ohci_hub_control (
 	u16		wLength
 ) {
 	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
-	int		ports = hcd_to_bus (hcd)->root_hub->maxchild;
+	int		ports = ohci->num_ports;
 	u32		temp;
 	int		retval = 0;