From cb6094596ac4b323c2504ee90d98b2ef43646b2f Mon Sep 17 00:00:00 2001
From: pfi79 <fedor.partanskiy@atme.com>
Date: Sat, 8 Feb 2025 19:29:33 +0300
Subject: [PATCH] fix peer panic from fabric/gossip/util (#5136)

Signed-off-by: Fedor Partanskiy <fedor.partanskiy@atme.com>
(cherry picked from commit fbc557fe275a9b40399a3c28f8d0234aa20ea2bc)
---
 gossip/util/pubsub.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/gossip/util/pubsub.go b/gossip/util/pubsub.go
index 34e679962bb..8c36401f00a 100644
--- a/gossip/util/pubsub.go
+++ b/gossip/util/pubsub.go
@@ -97,10 +97,9 @@ func (ps *PubSub) Subscribe(topic string, ttl time.Duration) Subscription {
 		s = NewSet()
 		ps.subscriptions[topic] = s
 	}
-	ps.Unlock()
-
 	// Add the subscription
 	s.Add(sub)
+	ps.Unlock()
 
 	// When the timeout expires, remove the subscription
 	time.AfterFunc(ttl, func() {