[libhandy/tabs: 13/62] Fix a use-after-free

[Alexander Mikhaylenko <alexm src gnome org>]

commit a59c78243ecb05c49b85292a39e25b50ba7bef1d
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Sep 5 04:03:01 2020 +0500

    Fix a use-after-free

 src/hdy-tab-box.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/src/hdy-tab-box.c b/src/hdy-tab-box.c
index 37aa5c26..cedfb7de 100644
--- a/src/hdy-tab-box.c
+++ b/src/hdy-tab-box.c
@@ -1548,6 +1548,9 @@ remove_page (HdyTabBox  *self,
 
   info->page = NULL;
 
+  if (info->appear_animation)
+    hdy_animation_stop (info->appear_animation);
+
   info->appear_animation =
     hdy_animation_new (GTK_WIDGET (self), info->appear_progress, 0,
                        CLOSE_ANIMATION_DURATION,
@@ -1712,6 +1715,8 @@ remove_animation_done_cb (gpointer user_data)
   GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (info->tab));
   HdyTabBox *self = HDY_TAB_BOX (parent);
 
+  g_clear_object (&info->appear_animation);
+
   if (!self->can_remove_placeholder) {
     hdy_tab_set_page (info->tab, self->placeholder_page);
     info->page = self->placeholder_page;