[tepl] Use g_{set,clear}_weak_pointer(), in TeplSignalGroup

[Sébastien Wilmet <swilmet src gnome org>]

commit 7945932ad50915576f2f5808f939c468a7f6dd74
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun May 10 20:25:51 2020 +0200

    Use g_{set,clear}_weak_pointer(), in TeplSignalGroup

 tepl/tepl-signal-group.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)
---
diff --git a/tepl/tepl-signal-group.c b/tepl/tepl-signal-group.c
index 120bb26..6e7e463 100644
--- a/tepl/tepl-signal-group.c
+++ b/tepl/tepl-signal-group.c
@@ -1,4 +1,4 @@
-/* SPDX-FileCopyrightText: 2017 - Sébastien Wilmet <swilmet gnome org>
+/* SPDX-FileCopyrightText: 2017-2020 - Sébastien Wilmet <swilmet gnome org>
  * SPDX-License-Identifier: LGPL-3.0-or-later
  */
 
@@ -31,8 +31,7 @@ _tepl_signal_group_new (GObject *object)
 
        group = g_new0 (TeplSignalGroup, 1);
 
-       group->object = object;
-       g_object_add_weak_pointer (object, (gpointer *) &group->object);
+       g_set_weak_pointer (&group->object, object);
 
        group->handler_ids = g_array_new (FALSE, TRUE, sizeof (gulong));
 
@@ -61,8 +60,7 @@ _tepl_signal_group_free (TeplSignalGroup *group)
                        g_signal_handler_disconnect (group->object, handler_id);
                }
 
-               g_object_remove_weak_pointer (group->object, (gpointer *) &group->object);
-               group->object = NULL;
+               g_clear_weak_pointer (&group->object);
        }
 
        g_array_free (group->handler_ids, TRUE);