From 4c01cd870547176952896fd9909e034543d181e9 Mon Sep 17 00:00:00 2001
From: devopsbo3 <69951731+devopsbo3@users.noreply.github.com>
Date: Fri, 10 Nov 2023 12:27:53 -0600
Subject: [PATCH] Revert "p2p/discover: swap verification order in discv4 ping
 handler (#27532)"

This reverts commit 66d41a44f819741109d18e1529053a0118598723.
---
 p2p/discover/v4_udp.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/p2p/discover/v4_udp.go b/p2p/discover/v4_udp.go
index ab335e2ced..d61a52c395 100644
--- a/p2p/discover/v4_udp.go
+++ b/p2p/discover/v4_udp.go
@@ -643,13 +643,13 @@ type packetHandlerV4 struct {
 func (t *UDPv4) verifyPing(h *packetHandlerV4, from *net.UDPAddr, fromID enode.ID, fromKey v4wire.Pubkey) error {
 	req := h.Packet.(*v4wire.Ping)
 
-	if v4wire.Expired(req.Expiration) {
-		return errExpired
-	}
 	senderKey, err := v4wire.DecodePubkey(crypto.S256(), fromKey)
 	if err != nil {
 		return err
 	}
+	if v4wire.Expired(req.Expiration) {
+		return errExpired
+	}
 	h.senderKey = senderKey
 	return nil
 }