From d7f61e7d5909da7227c9e34be06ce9eb872ba074 Mon Sep 17 00:00:00 2001
From: Andrew Toth <andrewstoth@gmail.com>
Date: Mon, 17 Oct 2022 09:12:20 -0400
Subject: [PATCH] rpc: reduce LOCK(cs_main) scope in gettxoutproof

---
 src/rpc/txoutproof.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/rpc/txoutproof.cpp b/src/rpc/txoutproof.cpp
index cd8b49bfe13..8c5468634d9 100644
--- a/src/rpc/txoutproof.cpp
+++ b/src/rpc/txoutproof.cpp
@@ -84,13 +84,13 @@ static RPCHelpMan gettxoutproof()
                 g_txindex->BlockUntilSyncedToCurrentChain();
             }
 
-            LOCK(cs_main);
-
             if (pblockindex == nullptr) {
                 const CTransactionRef tx = GetTransaction(/*block_index=*/nullptr, /*mempool=*/nullptr, *setTxids.begin(), chainman.GetConsensus(), hashBlock);
                 if (!tx || hashBlock.IsNull()) {
                     throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Transaction not yet in block");
                 }
+
+                LOCK(cs_main);
                 pblockindex = chainman.m_blockman.LookupBlockIndex(hashBlock);
                 if (!pblockindex) {
                     throw JSONRPCError(RPC_INTERNAL_ERROR, "Transaction index corrupt");