[at-spi2-core/gnome-3-36] Fix possible memory leak

[Mike Gorse <mgorse src gnome org>]

commit 0779a4a8db845fd1bc7d80e5f2bf8852276265f0
Author: Mike Gorse <mgorse suse com>
Date:   Mon Aug 10 14:13:19 2020 -0500

    Fix possible memory leak
    
    Thanks to Shimwoo Kim for spotting.

 atspi/atspi-event-listener.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/atspi/atspi-event-listener.c b/atspi/atspi-event-listener.c
index 38271f8e..8969b662 100644
--- a/atspi/atspi-event-listener.c
+++ b/atspi/atspi-event-listener.c
@@ -680,6 +680,7 @@ atspi_event_listener_register_from_callback_full (AtspiEventListenerCB callback,
                 callback_destroyed);
   if (!convert_event_type_to_dbus (event_type, &e->category, &e->name, &e->detail, &matchrule_array))
   {
+    g_free (e->event_type);
     g_free (e);
     return FALSE;
   }