eth: adapted to new synchronous api of downloader's AddBlock

eth/downloader/downloader.go

@@ -173,8 +173,6 @@ out:
 		select {
 		case sync := <-d.syncCh:
 			var peer *peer = sync.peer
-			d.activePeer = peer.id
-
 			err := d.getFromPeer(peer, sync.hash, sync.ignoreInitial)
 			if err != nil {
 				break

eth/downloader/synchronous.go

@@ -50,6 +50,8 @@ func (d *Downloader) Synchronise() (types.Blocks, error) {
 }
 
 func (d *Downloader) getFromPeer(p *peer, hash common.Hash, ignoreInitial bool) error {
+	d.activePeer = p.id
+
 	glog.V(logger.Detail).Infoln("Synchronising with the network using:", p.id)
 	// Start the fetcher. This will block the update entirely
 	// interupts need to be send to the appropriate channels