From 95766d71ac5474005b41be47360d7b7b9547f079 Mon Sep 17 00:00:00 2001
From: int_szyk <szymon.kwiatkowski@mobica.com>
Date: Tue, 24 Sep 2019 12:53:53 +0200
Subject: [PATCH] thread_mle_message_handler: fix null comparison.

Fixes Coverity issue about comparing nullptr.
---
 .../source/6LoWPAN/Thread/thread_mle_message_handler.c        | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/features/nanostack/sal-stack-nanostack/source/6LoWPAN/Thread/thread_mle_message_handler.c b/features/nanostack/sal-stack-nanostack/source/6LoWPAN/Thread/thread_mle_message_handler.c
index 68df5ed719..a8253c5f8e 100644
--- a/features/nanostack/sal-stack-nanostack/source/6LoWPAN/Thread/thread_mle_message_handler.c
+++ b/features/nanostack/sal-stack-nanostack/source/6LoWPAN/Thread/thread_mle_message_handler.c
@@ -514,7 +514,7 @@ static void thread_parse_annoucement(protocol_interface_info_entry_t *cur, mle_m
     channel_page = ptr[0];
     channel = common_read_16_bit(&ptr[1]);
 
-    if (linkConfiguration->timestamp == timestamp) {
+    if (linkConfiguration && linkConfiguration->timestamp == timestamp) {
         // We received same timestamp
         tr_debug("Same timestamp");
         return;
@@ -527,7 +527,7 @@ static void thread_parse_annoucement(protocol_interface_info_entry_t *cur, mle_m
     }
 
 
-    if (linkConfiguration->timestamp > timestamp) {
+    if (linkConfiguration && linkConfiguration->timestamp > timestamp) {
         // We received older time stamp we just announce back to originator channel
         thread_bootstrap_announce_send(cur, linkConfiguration->channel_page, linkConfiguration->rfChannel, linkConfiguration->panId, linkConfiguration->timestamp, channel);
         return;