From 8accfb97f6e02b4e6711ffadd3cbdb10eaf813f1 Mon Sep 17 00:00:00 2001
From: Alexey Bulatov <alexey.bulatov@emlid.com>
Date: Fri, 2 Jun 2017 16:55:21 +0300
Subject: [PATCH] ArduCopter: Check for nullptr for motors class pointer

Because of added initialisation of UAVCAN send_heartbeat function
starts before motors initialisation. So we need check is object created.
---
 ArduCopter/GCS_Mavlink.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ArduCopter/GCS_Mavlink.cpp b/ArduCopter/GCS_Mavlink.cpp
index 32218b1267..c7a287f27c 100644
--- a/ArduCopter/GCS_Mavlink.cpp
+++ b/ArduCopter/GCS_Mavlink.cpp
@@ -70,7 +70,7 @@ NOINLINE void Copter::send_heartbeat(mavlink_channel_t chan)
 #endif
 
     // we are armed if we are not initialising
-    if (motors->armed()) {
+    if (motors != nullptr && motors->armed()) {
         base_mode |= MAV_MODE_FLAG_SAFETY_ARMED;
     }