From d1138b9b1023bb513ea3144774a9d4e7fc8288d4 Mon Sep 17 00:00:00 2001
From: Tuna <ng.tuna@gmail.com>
Date: Thu, 12 Jul 2018 17:00:06 +0700
Subject: [PATCH] bugfix: unexpected pre node

---
 consensus/clique/clique.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/consensus/clique/clique.go b/consensus/clique/clique.go
index 093ee7dee2..4e57afb35c 100644
--- a/consensus/clique/clique.go
+++ b/consensus/clique/clique.go
@@ -408,9 +408,10 @@ func (c *Clique) GetMasternodes(chain consensus.ChainReader, header *types.Heade
 func YourTurn(masternodes []common.Address, snap *Snapshot, header *types.Header, cur common.Address) (bool, error) {
 	pre := common.Address{}
 	// masternode[0] has chance to create block 1
+	var err error
 	preIndex := -1
 	if header.Number.Uint64() != 0 {
-		pre, err := ecrecover(header, snap.sigcache)
+		pre, err = ecrecover(header, snap.sigcache)
 		if err != nil {
 			return false, err
 		}