send: do not unlock already freed object

diff --git a/send.go b/send.go
index b636a437dfda15aea4f79bb00aaf0f544aac7be6..07e43e12173c45f5bc66ec7bf7c1c0653f8135d0 100644 (file)
--- a/send.go
+++ b/send.go
@@ -562,7 +562,6 @@ func (peer *Peer) RoutineSequentialSender() {
                                                elem.Drop()
                                        }
                                        device.PutOutboundElement(elem)
-                                       elem.mutex.Unlock()
                                }
                        default:
                                goto out