[PATCH] uhci.c 2.4.19-pre3 erroneous completion callback

uhci.c would call the completion callback when the call to submit_urb
failed. This is a rare situation.

This patch only calls the completion handler if the URB successfully
completed immediately (as in the case of talking to the virtual root
hub).

JE

drivers/usb/uhci.c

@@ -1594,7 +1594,9 @@ static int uhci_submit_urb(struct urb *urb, int mem_flags)
 	spin_unlock(&urb->lock);
 	spin_unlock_irqrestore(&uhci->urb_list_lock, flags);
 
-	uhci_call_completion(urb);
+	/* Only call completion if it was successful */
+	if (!ret)
+		uhci_call_completion(urb);
 
 	return ret;
 }