From: Carlos Garnacho <carlosg@gnome.org>
Date: Mon, 16 Mar 2015 15:20:21 +0000 (+0100)
Subject: widget: Take a ref during ::unrealize emission
X-Git-Tag: archive/raspbian/4.4.1+ds1-2+rpi1^2~18^2~24^2~10171
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=b4e61b759ba9c0782ff7fd592046f46022ca471e;p=gtk4.git

widget: Take a ref during ::unrealize emission

In order to prevent invalid memory access/crashes if the widget is
destroyed in a callback of that signal.

https://bugzilla.gnome.org/show_bug.cgi?id=745829
---

diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 043fac48bf..5e0a9cb62a 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -5566,6 +5566,7 @@ gtk_widget_unrealize (GtkWidget *widget)
 {
   g_return_if_fail (GTK_IS_WIDGET (widget));
 
+  g_object_ref (widget);
   gtk_widget_push_verify_invariants (widget);
 
   if (widget->priv->has_shape_mask)
@@ -5592,6 +5593,7 @@ gtk_widget_unrealize (GtkWidget *widget)
     }
 
   gtk_widget_pop_verify_invariants (widget);
+  g_object_unref (widget);
 }
 
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