[gtk+] GtkWindow: Check for popover realized-ness before unrealizing

[Matthias Clasen <matthiasc src gnome org>]

commit 02306867c3e1fc5c047d569ead9f45fb6f791e7d
Author: Timm Bäder <mail baedert org>
Date:   Wed Sep 23 18:29:50 2015 +0200

    GtkWindow: Check for popover realized-ness before unrealizing
    
    https://bugzilla.gnome.org/show_bug.cgi?id=755473

 gtk/gtkwindow.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index a5930dd..d3041b7 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -11886,7 +11886,7 @@ _gtk_window_remove_popover (GtkWindow *window,
 
   popover_unmap (popover, data);
 
-  if (_gtk_widget_get_realized (GTK_WIDGET (window)))
+  if (_gtk_widget_get_realized (GTK_WIDGET (popover)))
     popover_unrealize (popover, data, window);
 
   priv->popovers = g_list_remove (priv->popovers, data);