USB: uhci: rm repeatedly evaluation for urbp->qh

Signed-off-by: NBob Liu <yjfpb04@gmail.com>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/uhci-q.c

@@ -1422,7 +1422,6 @@ static int uhci_urb_enqueue(struct usb_hcd *hcd,
 		goto err_submit_failed;
 
 	/* Add this URB to the QH */
-	urbp->qh = qh;
 	list_add_tail(&urbp->node, &qh->queue);
 
 	/* If the new URB is the first and only one on this QH then either