From c19391d5404937873cf2f3ac3d9fb31885234f30 Mon Sep 17 00:00:00 2001
From: Pierre Kancir <pierre.kancir.emn@gmail.com>
Date: Wed, 11 Aug 2021 00:08:48 +0200
Subject: [PATCH] AP_Filesystem: correct file open flags for append

---
 libraries/AP_Filesystem/posix_compat.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/AP_Filesystem/posix_compat.cpp b/libraries/AP_Filesystem/posix_compat.cpp
index d548b6b104..2e80cbb929 100644
--- a/libraries/AP_Filesystem/posix_compat.cpp
+++ b/libraries/AP_Filesystem/posix_compat.cpp
@@ -71,7 +71,7 @@ static int posix_fopen_modes_to_open(const char *mode)
     }
     if (modecmp(mode,"a+") || modecmp(mode, "a+b" ) || modecmp(mode, "ab+" )) {
         flag = O_RDWR | O_CREAT | O_APPEND;
-        return -1;
+        return flag;
     }
     return -1;
 }