[gtk+] Fix an uninitialized variable warning

[Matthias Clasen <matthiasc src gnome org>]

commit 5e67d61ff4e951bc13e8a07d0c9830088906f5ee
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Feb 23 19:59:52 2012 -0500

    Fix an uninitialized variable warning

 gdk/gdkwindow.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index ed39799..1d1e6d0 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -9557,7 +9557,7 @@ _gdk_windowing_got_event (GdkDisplay *display,
   gboolean unlink_event;
   guint old_state, old_button;
   GdkDeviceGrabInfo *button_release_grab;
-  GdkPointerWindowInfo *pointer_info;
+  GdkPointerWindowInfo *pointer_info = NULL;
   GdkDevice *device, *source_device;
   gboolean is_toplevel;