From f7e88dd67190dad55945d3991d8923dab936dbd6 Mon Sep 17 00:00:00 2001
From: Masc1989 <38345741+Masc1989@users.noreply.github.com>
Date: Fri, 13 Apr 2018 10:03:00 +0200
Subject: [PATCH] Fixes crash when sector is null

When releasing memory it can crash when the sector is null
---
 sources/OpenMcdf/CompoundFile.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sources/OpenMcdf/CompoundFile.cs b/sources/OpenMcdf/CompoundFile.cs
index 13928324..ad0024e3 100644
--- a/sources/OpenMcdf/CompoundFile.cs
+++ b/sources/OpenMcdf/CompoundFile.cs
@@ -550,7 +550,7 @@ public void Commit(bool releaseMemory)
                     gap = true;
                 }
 
-                if (releaseMemory)
+                if ( s != null && releaseMemory)
                 {
 
                     s.ReleaseData();