From 09f370940ac30a5f1532cadeab317b683a43009c Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Mon, 12 Oct 2015 12:25:06 +0200
Subject: [PATCH] POSIX UDP: Correct evaluation of broadcast return value

---
 src/modules/mavlink/mavlink_main.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/modules/mavlink/mavlink_main.cpp b/src/modules/mavlink/mavlink_main.cpp
index 7fba62f3fd..297a76239b 100644
--- a/src/modules/mavlink/mavlink_main.cpp
+++ b/src/modules/mavlink/mavlink_main.cpp
@@ -898,7 +898,7 @@ Mavlink::send_message(const uint8_t msgid, const void *msg, uint8_t component_ID
 
 			int bret = sendto(_socket_fd, buf, packet_len, 0, (struct sockaddr *)&_bcast_addr, sizeof(_bcast_addr));
 
-			if (bret) {
+			if (bret <= 0) {
 				PX4_WARN("sending broadcast failed");
 			}
 		}