[gtk+/native-layout] Fix a memory leak in gdk_display_open in the directfb backend

[Tristan Van Berkom <tvb src gnome org>]

commit d1babc777533ee36a96f6dae3862711431bedc87
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Feb 23 13:06:44 2010 -0500

    Fix a memory leak in gdk_display_open in the directfb backend
    
    Patch by Andre Draszik, bug 609172

 gdk/directfb/gdkdisplay-directfb.c |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)
---
diff --git a/gdk/directfb/gdkdisplay-directfb.c b/gdk/directfb/gdkdisplay-directfb.c
index 423e15d..f5a9d6a 100644
--- a/gdk/directfb/gdkdisplay-directfb.c
+++ b/gdk/directfb/gdkdisplay-directfb.c
@@ -93,17 +93,19 @@ GdkDisplay * gdk_display_open (const gchar *display_name)
     {
       DirectFBError ("gdk_display_open: GetDisplayLayer", ret);
       directfb->Release (directfb);
-	  directfb = NULL;
+      _gdk_display->directfb = NULL;
       return NULL;
     }
 
 
-  ret=directfb->GetInputDevice (directfb, DIDID_KEYBOARD, &keyboard);
-
-  if (ret != DFB_OK){
+  ret = directfb->GetInputDevice (directfb, DIDID_KEYBOARD, &keyboard);
+  if (ret != DFB_OK)
+    {
       DirectFBError ("gdk_display_open: GetInputDevice", ret);
-   	return NULL;
-  }
+      directfb->Release (directfb);
+      _gdk_display->directfb = NULL;
+      return NULL;
+    }
 
   _gdk_display->layer=layer;
   _gdk_display->keyboard=keyboard;