Index: usb-devel/drivers/net/usb/usbnet.c
===================================================================
--- usb-devel.orig/drivers/net/usb/usbnet.c
+++ usb-devel/drivers/net/usb/usbnet.c
@@ -1775,6 +1775,9 @@ usbnet_probe (struct usb_interface *udev
 	} else if (!info->in || !info->out)
 		status = usbnet_get_endpoints (dev, udev);
 	else {
+		u8		ep_addrs[3] = {
+			info->in + USB_DIR_IN, info->out + USB_DIR_OUT, 0};
+
 		dev->in = usb_rcvbulkpipe (xdev, info->in);
 		dev->out = usb_sndbulkpipe (xdev, info->out);
 		if (!(info->flags & FLAG_NO_SETINT))
@@ -1784,6 +1787,8 @@ usbnet_probe (struct usb_interface *udev
 		else
 			status = 0;
 
+		if (status == 0 && !usb_check_bulk_endpoints(udev, ep_addrs))
+			status = -EINVAL;
 	}
 	if (status >= 0 && dev->status)
 		status = init_status (dev, udev);