@@ -101,7 +101,7 @@ github.com/docker/containerd 4ab9917febca54791c5f071a9d1f404867857fcc

 github.com/tonistiigi/fifo 1405643975692217d6720f8b54aeee1bf2cd5cf4

 # cluster

-github.com/docker/swarmkit e68072200ebbba6ce9745b3a3e49fdba3eb71ff8

+github.com/docker/swarmkit 2591ac368b6a8ae1c6f8438874e62f8e4778450c

 github.com/golang/mock bd3c8e81be01eef76d4b503f5e687d2d1354d2d9

 github.com/gogo/protobuf v0.3

 github.com/cloudflare/cfssl 7fb22c8cba7ecaf98e4082d22d65800cf45e042a

@@ -404,13 +404,14 @@ func (d *Dispatcher) markNodeReady(nodeID string, description *api.NodeDescripti

 	// Wait until the node update batch happens before unblocking register.

 	d.processUpdatesLock.Lock()

+	defer d.processUpdatesLock.Unlock()

+

 	select {

 	case <-d.ctx.Done():

 		return d.ctx.Err()

 	default:

 	}

 	d.processUpdatesCond.Wait()

-	d.processUpdatesLock.Unlock()

 	return nil

 }