Index: usb-devel/drivers/usb/core/urb.c
===================================================================
--- usb-devel.orig/drivers/usb/core/urb.c
+++ usb-devel/drivers/usb/core/urb.c
@@ -204,8 +204,17 @@ int usb_urb_ep_type_check(const struct u
 	const struct usb_host_endpoint *ep;
 
 	ep = usb_pipe_endpoint(urb->dev, urb->pipe);
-	if (!ep)
-		return -EINVAL;
+	if (!ep) {
+		/*
+		 * Special case: The pointers for ep0 are temporarily cleared
+		 * during device resets.  We won't count this as an error;
+		 * drivers can reasonably expect that ep0 always exists.
+		 */
+		if (usb_pipeendpoint(urb->pipe) == 0)
+			ep = &urb->dev->ep0;
+		else
+			return -EINVAL;
+	}
 	if (usb_pipetype(urb->pipe) != pipetypes[usb_endpoint_type(&ep->desc)])
 		return -EINVAL;
 	return 0;