From e8df08a4d3d61a0a0965de46609a81c1e9009c3d Mon Sep 17 00:00:00 2001
From: Jaaaky <43599380+Jaaaky@users.noreply.github.com>
Date: Wed, 22 Jan 2020 10:38:28 +0200
Subject: [PATCH] AP_Terrain: Avoid update() IO operations when not enabled

---
 libraries/AP_Terrain/AP_Terrain.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/AP_Terrain/AP_Terrain.cpp b/libraries/AP_Terrain/AP_Terrain.cpp
index 50c67749fd..867a043345 100644
--- a/libraries/AP_Terrain/AP_Terrain.cpp
+++ b/libraries/AP_Terrain/AP_Terrain.cpp
@@ -296,6 +296,7 @@ float AP_Terrain::lookahead(float bearing, float distance, float climb_ratio)
  */
 void AP_Terrain::update(void)
 {
+    if (!enable) { return; }
     // just schedule any needed disk IO
     schedule_disk_io();