From b4cc7670dfcb50b6a7bf5dfffe1632897bb2fc5e Mon Sep 17 00:00:00 2001
From: chinglee-iot <61685396+chinglee-iot@users.noreply.github.com>
Date: Sun, 12 Sep 2021 08:00:07 +0800
Subject: [PATCH] Fix possible null pointer dereference in Log (#677)

Co-authored-by: Gaurav-Aggarwal-AWS <33462878+aggarg@users.noreply.github.com>
---
 FreeRTOS-Plus/Demo/AWS/Mqtt_Demo_Helpers/mqtt_demo_helpers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/FreeRTOS-Plus/Demo/AWS/Mqtt_Demo_Helpers/mqtt_demo_helpers.c b/FreeRTOS-Plus/Demo/AWS/Mqtt_Demo_Helpers/mqtt_demo_helpers.c
index c469665dfa..259fa87180 100644
--- a/FreeRTOS-Plus/Demo/AWS/Mqtt_Demo_Helpers/mqtt_demo_helpers.c
+++ b/FreeRTOS-Plus/Demo/AWS/Mqtt_Demo_Helpers/mqtt_demo_helpers.c
@@ -903,7 +903,7 @@ BaseType_t xPublishToTopic( MQTTContext_t * pxMqttContext,
     }
     else
     {
-        LogInfo( ( "the published payload:%s \r\n ", pcPayload ) );
+        LogInfo( ( "the published payload:%.*s \r\n ", payloadLength, pcPayload ) );
         /* This example publishes to only one topic and uses QOS1. */
         outgoingPublishPackets[ ucPublishIndex ].pubInfo.qos = MQTTQoS1;
         outgoingPublishPackets[ ucPublishIndex ].pubInfo.pTopicName = pcTopicFilter;