From: Marco Trevisan (Treviño) <mail@3v1n0.net>
Date: Thu, 19 Apr 2018 01:58:57 +0000 (-0500)
Subject: stack: protect set_visible_child_name from NULL stack
X-Git-Tag: archive/raspbian/4.4.1+ds1-2+rpi1^2~18^2~22^2~455
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=c15b64b7206e6c6d129b5d732878bc61221390d5;p=gtk4.git

stack: protect set_visible_child_name from NULL stack

Return with error if gtk_stack_set_visible_child_name is called
with NULL parameter


(cherry picked from commit 2ee5aee4a9f01cce3dda7dff877070b62c3e2880)
---

diff --git a/gtk/gtkstack.c b/gtk/gtkstack.c
index b508aee659..34f5491c48 100644
--- a/gtk/gtkstack.c
+++ b/gtk/gtkstack.c
@@ -1670,6 +1670,8 @@ gtk_stack_set_visible_child_name (GtkStack   *stack,
 {
   GtkStackPrivate *priv = gtk_stack_get_instance_private (stack);
 
+  g_return_if_fail (GTK_IS_STACK (stack));
+
   gtk_stack_set_visible_child_full (stack, name, priv->transition_type);
 }