From 1fc3290b32cc55a9ce4fb4170c6029ff784c0629 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Tue, 28 May 2024 16:46:51 +0200
Subject: [PATCH] p2p/discover: add sanity check

---
 p2p/discover/table_reval.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/p2p/discover/table_reval.go b/p2p/discover/table_reval.go
index eddb6ff1c1..d2c57504d1 100644
--- a/p2p/discover/table_reval.go
+++ b/p2p/discover/table_reval.go
@@ -59,9 +59,10 @@ func (tr *tableRevalidation) nodeAdded(tab *Table, n *node) {
 
 // nodeRemoved is called when a node was removed from the table.
 func (tr *tableRevalidation) nodeRemoved(n *node) {
-	if n.revalList != nil {
-		n.revalList.remove(n)
+	if n.revalList == nil {
+		panic(fmt.Errorf("removed node %v has nil revalList", n.ID()))
 	}
+	n.revalList.remove(n)
 }
 
 // run performs node revalidation.