From d3390db38f6be5b7ea21f476eec6d617d9d44db1 Mon Sep 17 00:00:00 2001
From: Bojie Wu <bojie@dexon.org>
Date: Thu, 1 Nov 2018 17:53:06 +0800
Subject: app: add lock to prevent concurrent map read write

---
 core/blockchain.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/blockchain.go b/core/blockchain.go
index 1bbaf2bc9..3fd2e0692 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -290,6 +290,9 @@ func (bc *BlockChain) AddConfirmedBlock(block *coreTypes.Block) error {
 }
 
 func (bc *BlockChain) RemoveConfirmedBlock(hash coreCommon.Hash) {
+	bc.confirmedBlocksMu.Lock()
+	defer bc.confirmedBlocksMu.Unlock()
+
 	blockInfo := bc.confirmedBlocks[hash]
 	for addr := range blockInfo.addresses {
 		bc.addressCounter[addr]--
-- 
cgit v1.2.3