0013_add_checks_to_prvPublishStatusMessage.patch

diff --git a/src/amazon-freertos/libraries/freertos_plus/aws/ota/src/mqtt/aws_iot_ota_mqtt.c b/src/amazon-freertos/libraries/freertos_plus/aws/ota/src/mqtt/aws_iot_ota_mqtt.c
index 634f21885..c185e6755 100644
--- a/src/amazon-freertos/libraries/freertos_plus/aws/ota/src/mqtt/aws_iot_ota_mqtt.c
+++ b/src/amazon-freertos/libraries/freertos_plus/aws/ota/src/mqtt/aws_iot_ota_mqtt.c
@@ -391,6 +391,12 @@ static OTA_Err_t prvPublishStatusMessage( OTA_AgentContext_t * pxAgentCtx,
     IotMqttError_t eResult;
     char pcTopicBuffer[ OTA_MAX_TOPIC_LEN ];
 
+    if( NULL == pxAgentCtx || NULL == pxAgentCtx->pcThingName || NULL == pxAgentCtx->pcOTA_Singleton_ActiveJobName )
+    {
+        OTA_LOG_L1( "[%s] Failed: thing or job names are not available\r\n", OTA_METHOD_NAME );
+        return kOTA_Err_PublishFailed;
+    }
+
     /* Try to build the dynamic job status topic . */
     ulTopicLen = ( uint32_t ) snprintf( pcTopicBuffer, /*lint -e586 Intentionally using snprintf. */
                                         sizeof( pcTopicBuffer ),