From 400aeae5b8abf83133fbd845288537733d4f4e54 Mon Sep 17 00:00:00 2001
From: ssp97 <zhang@yuanpai.win>
Date: Thu, 22 Aug 2024 22:09:23 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E9=94=99=E8=AF=AF=E5=88=A4?=
 =?UTF-8?q?=E6=96=AD?=
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---
 mqtt/client.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mqtt/client.go b/mqtt/client.go
index 625752f..94b4715 100644
--- a/mqtt/client.go
+++ b/mqtt/client.go
@@ -75,6 +75,9 @@ func MqttClientSubscribe(session *Session, topic string, qos byte) {
 }
 
 func MqttClientUnsubscribe(session *Session, topic string) {
+	if session == nil {
+		return
+	}
 	client := *session.Client
 	client.Unsubscribe(topic)
 }