[gnome-bluetooth/wip/hadess/cleanups: 8/9] lib: Add guards to bluetooth_agent_register()

[Bastien Nocera <hadess src gnome org>]

commit edd3cfa5e19c2114b781631ce951e308271bd52e
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Feb 17 16:20:21 2021 +0100

    lib: Add guards to bluetooth_agent_register()
    
    This stops invalid agent object paths from being registered, and failing
    deeper inside the library.

 lib/bluetooth-agent.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/lib/bluetooth-agent.c b/lib/bluetooth-agent.c
index 6185a297..53aa8147 100644
--- a/lib/bluetooth-agent.c
+++ b/lib/bluetooth-agent.c
@@ -492,6 +492,8 @@ gboolean bluetooth_agent_register(BluetoothAgent *agent)
        g_autoptr(GError) error = NULL;
 
        g_return_val_if_fail (BLUETOOTH_IS_AGENT (agent), FALSE);
+       g_return_val_if_fail (agent->path != NULL, FALSE);
+       g_return_val_if_fail (g_variant_is_object_path(agent->path), FALSE);
 
        agent->reg_id = g_dbus_connection_register_object (agent->conn,
                                                           agent->path,