From 5d9dd742ab2206ddb3da9bb658f62b32a756bfd3 Mon Sep 17 00:00:00 2001
From: hackyminer <hackyminer@gmail.com>
Date: Mon, 4 Feb 2019 05:47:45 +0900
Subject: [PATCH] trie/database: add a missing unlock

---
 trie/database.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/trie/database.go b/trie/database.go
index 739a98addb..aba5943f5a 100644
--- a/trie/database.go
+++ b/trie/database.go
@@ -679,6 +679,7 @@ func (db *Database) Commit(node common.Hash, report bool) error {
 		}
 		if batch.ValueSize() > ethdb.IdealBatchSize {
 			if err := batch.Write(); err != nil {
+				db.lock.RUnlock()
 				return err
 			}
 			batch.Reset()