From a81a19296f3f736150d3c842055df2a706e37188 Mon Sep 17 00:00:00 2001
From: Marius van der Wijden <m.vanderwijden@live.de>
Date: Wed, 6 Mar 2024 12:34:27 +0100
Subject: [PATCH] miner: add mutex to protect the pending block

---
 miner/miner.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/miner/miner.go b/miner/miner.go
index 7d0cb3813c..0aeb2f0374 100644
--- a/miner/miner.go
+++ b/miner/miner.go
@@ -139,11 +139,10 @@ func (miner *Miner) getPending() *newPayloadResult {
 
 	header := miner.chain.CurrentHeader()
 	miner.pendingMu.Lock()
+	defer miner.pendingMu.Unlock()
 	if cached := miner.pending.resolve(header.Hash(), coinbase); cached != nil {
-		miner.pendingMu.Unlock()
 		return cached
 	}
-	defer miner.pendingMu.Unlock()
 
 	var (
 		timestamp  = uint64(time.Now().Unix())