From 23b0ee801d7b130039f5fc8955e585d8f27ddda9 Mon Sep 17 00:00:00 2001
From: Jens Hemprich <31758696+jenshemprich@users.noreply.github.com>
Date: Sat, 25 Aug 2007 19:02:54 +0000
Subject: [PATCH] Fixed possible crash on exit

---
 MacGLide/OpenGLide/grguSstGlide.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/MacGLide/OpenGLide/grguSstGlide.cpp b/MacGLide/OpenGLide/grguSstGlide.cpp
index 101b3eb..8dbd784 100644
--- a/MacGLide/OpenGLide/grguSstGlide.cpp
+++ b/MacGLide/OpenGLide/grguSstGlide.cpp
@@ -544,9 +544,12 @@ grSstWinClose( void )
 	RenderFree();
 	FinaliseOpenGLWindow();
 
-	FreeFrameBuffer(Glide.FrameBuffer.Address);
-	Glide.FrameBuffer.Address = NULL;
-	Glide.TempBuffer.Address = NULL;
+	if (Glide.FrameBuffer.Address)
+	{
+		FreeFrameBuffer(Glide.FrameBuffer.Address);
+		Glide.FrameBuffer.Address = NULL;
+		Glide.TempBuffer.Address = NULL;
+	}
 	// Freeing the readbuffer is be deferred until
 	// reopening the window or unloading the library
 }