From 97069a05d5688b2d21b7d3799bacd5f048e9d5cb Mon Sep 17 00:00:00 2001
From: Anna Shaleva <shaleva.ann@nspcc.ru>
Date: Wed, 18 Nov 2020 18:27:06 +0300
Subject: [PATCH] core: fix locking in storeBlock

---
 pkg/core/blockchain.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/core/blockchain.go b/pkg/core/blockchain.go
index bfe44143b..d0c0a4007 100644
--- a/pkg/core/blockchain.go
+++ b/pkg/core/blockchain.go
@@ -705,9 +705,11 @@ func (bc *Blockchain) storeBlock(block *block.Block, txpool *mempool.Pool) error
 		return err
 	}
 	if err := bc.contracts.Policy.OnPersistEnd(bc.dao); err != nil {
+		bc.lock.Unlock()
 		return fmt.Errorf("failed to call OnPersistEnd for Policy native contract: %w", err)
 	}
 	if err := bc.contracts.Designate.OnPersistEnd(bc.dao); err != nil {
+		bc.lock.Unlock()
 		return err
 	}
 	bc.dao.MPT.Flush()