From 02116c0a80b56cee5e9a91aa60d1c45d37ed4ce0 Mon Sep 17 00:00:00 2001
From: Florian Achermann <florian.achermann@mavt.ethz.ch>
Date: Fri, 29 Jun 2018 16:11:27 +0200
Subject: [PATCH] mavlink: Indicate if the instance did not start correctly
 (#9744)

---
 src/modules/mavlink/mavlink_main.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/modules/mavlink/mavlink_main.cpp b/src/modules/mavlink/mavlink_main.cpp
index 5c300a0697..d7c0cc6200 100644
--- a/src/modules/mavlink/mavlink_main.cpp
+++ b/src/modules/mavlink/mavlink_main.cpp
@@ -2676,7 +2676,12 @@ Mavlink::start(int argc, char *argv[])
 		count++;
 	}
 
-	return OK;
+	if (ic == Mavlink::instance_count()) {
+		return PX4_ERROR;
+
+	} else {
+		return PX4_OK;
+	}
 }
 
 void