From 99a8aeeeb1213c1b65e69531a26edf46571c96a3 Mon Sep 17 00:00:00 2001
From: Matt <98158711+BedrockSquirrel@users.noreply.github.com>
Date: Thu, 30 May 2024 17:07:11 +0100
Subject: [PATCH] Enclave: fix panic on uninitialised mempool (#1940)

---
 go/enclave/txpool/txpool.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/go/enclave/txpool/txpool.go b/go/enclave/txpool/txpool.go
index 8653d9626f..6deca4a1a4 100644
--- a/go/enclave/txpool/txpool.go
+++ b/go/enclave/txpool/txpool.go
@@ -51,7 +51,7 @@ func NewTxPool(blockchain *ethchainadapter.EthChainAdapter, gasTip *big.Int, log
 // Start starts the pool
 // can only be started after t.blockchain has at least one block inside
 func (t *TxPool) Start() error {
-	if t.pool != nil {
+	if t.running {
 		return fmt.Errorf("tx pool already started")
 	}
 
@@ -75,6 +75,9 @@ func (t *TxPool) PendingTransactions() map[gethcommon.Address][]*gethtxpool.Lazy
 
 // Add adds a new transactions to the pool
 func (t *TxPool) Add(transaction *common.L2Tx) error {
+	if !t.running {
+		return fmt.Errorf("tx pool not running")
+	}
 	var strErrors []string
 	for _, err := range t.pool.Add([]*types.Transaction{transaction}, false, false) {
 		if err != nil {