From 2f311dddfd059050daa6314b8ce4de3265213176 Mon Sep 17 00:00:00 2001
From: "romolo.manfredini@gmail.com"
 <romolo.manfredini@gmail.com@8db61ce9-5e8f-94c8-fa6b-1d1c8bcca7d0>
Date: Thu, 13 Dec 2012 23:08:42 +0000
Subject: [PATCH] Avoid segfault in simulator

---
 src/simpgmspace.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/simpgmspace.cpp b/src/simpgmspace.cpp
index 1780be4b9..a1c7b6662 100644
--- a/src/simpgmspace.cpp
+++ b/src/simpgmspace.cpp
@@ -481,8 +481,10 @@ FRESULT f_lseek (FIL* fil, DWORD offset)
 
 FRESULT f_close (FIL * fil)
 {
-  if (fil->fs)
+  if (fil->fs) {
     fclose((FILE*)fil->fs);
+    fil->fs=NULL;
+  }
   return FR_OK;
 }