From c70aa5143b83d01aafadc602bb8aff942b0ad3f9 Mon Sep 17 00:00:00 2001
From: kervala <kervala@localhost>
Date: Tue, 6 Dec 2016 20:24:21 +0100
Subject: [PATCH] Changed: Don't close a display already closed

---
 code/nel/src/3d/driver/opengl/driver_opengl_window.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/code/nel/src/3d/driver/opengl/driver_opengl_window.cpp b/code/nel/src/3d/driver/opengl/driver_opengl_window.cpp
index 9514d938f..171214384 100644
--- a/code/nel/src/3d/driver/opengl/driver_opengl_window.cpp
+++ b/code/nel/src/3d/driver/opengl/driver_opengl_window.cpp
@@ -501,8 +501,11 @@ bool CDriverGL::unInit()
 	// restore default X errors handler
 	XSetErrorHandler(NULL);
 
-	XCloseDisplay(_dpy);
-	_dpy = NULL;
+	if (_dpy)
+	{
+		XCloseDisplay(_dpy);
+		_dpy = NULL;
+	}
 
 #endif // NL_OS_UNIX