From 1c6d389cb7dc4bc6a7edb08c68359c952e8f1c23 Mon Sep 17 00:00:00 2001
From: Jowen <jowen.xiao@viewfin.com>
Date: Thu, 14 Jun 2018 16:19:15 +0800
Subject: [PATCH] revert get_previous_tx from pool, without lock.

---
 src/lib/blockchain/validate_transaction.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/lib/blockchain/validate_transaction.cpp b/src/lib/blockchain/validate_transaction.cpp
index f0e20f0bb..ea6c22778 100644
--- a/src/lib/blockchain/validate_transaction.cpp
+++ b/src/lib/blockchain/validate_transaction.cpp
@@ -212,8 +212,11 @@ bool validate_transaction::get_previous_tx(chain::transaction& prev_tx,
 {
     prev_height = 0;
     if (pool_) {
-        if (blockchain_.get_transaction(input.previous_output.hash, prev_tx, prev_height)) {
-            return true; // find in block chain or memory pool
+        if (blockchain_.get_transaction(prev_tx, prev_height, input.previous_output.hash)) {
+            return true; // find in block chain
+        }
+        if (pool_->find(prev_tx, input.previous_output.hash)) {
+            return true; // find in memory pool
         }
     }
     else {