[mutter/cherry-pick-79e5ec57-5] cally: fix state set leak

[Jonas Ådahl <jadahl src gnome org>]

commit b99490ed3cf39f27299479ed8d026d2ba8f51357
Author: Ray Strode <rstrode redhat com>
Date:   Thu Apr 30 14:23:09 2020 +0000

    cally: fix state set leak
    
    cally_actor_action_do_action leaks a state set object in the
    case where the actor is defunct, insensitive, or hidden.
    
    This commit plugs the leak.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1225
    
    
    (cherry picked from commit 79e5ec57d24f1650cdb2f23e68c9f8bf6a494283)

 clutter/clutter/cally/cally-actor.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)
---
diff --git a/clutter/clutter/cally/cally-actor.c b/clutter/clutter/cally/cally-actor.c
index f341d36165..26327ad96b 100644
--- a/clutter/clutter/cally/cally-actor.c
+++ b/clutter/clutter/cally/cally-actor.c
@@ -819,10 +819,11 @@ static gboolean
 cally_actor_action_do_action (AtkAction *action,
                              gint       index)
 {
-  CallyActor           *cally_actor = NULL;
-  AtkStateSet          *set         = NULL;
-  CallyActorPrivate    *priv        = NULL;
-  CallyActorActionInfo *info        = NULL;
+  CallyActor *cally_actor = NULL;
+  AtkStateSet *set = NULL;
+  CallyActorPrivate *priv = NULL;
+  CallyActorActionInfo *info = NULL;
+  gboolean did_action = FALSE;
 
   cally_actor = CALLY_ACTOR (action);
   priv = cally_actor->priv;
@@ -830,21 +831,19 @@ cally_actor_action_do_action (AtkAction *action,
   set = atk_object_ref_state_set (ATK_OBJECT (cally_actor));
 
   if (atk_state_set_contains_state (set, ATK_STATE_DEFUNCT))
-    return FALSE;
+    goto out;
 
   if (!atk_state_set_contains_state (set, ATK_STATE_SENSITIVE) ||
       !atk_state_set_contains_state (set, ATK_STATE_SHOWING))
-    return FALSE;
-
-  g_object_unref (set);
+    goto out;
 
   info = _cally_actor_get_action_info (cally_actor, index);
 
   if (info == NULL)
-    return FALSE;
+    goto out;
 
   if (info->do_action_func == NULL)
-    return FALSE;
+    goto out;
 
   if (!priv->action_queue)
     priv->action_queue = g_queue_new ();
@@ -854,7 +853,12 @@ cally_actor_action_do_action (AtkAction *action,
   if (!priv->action_idle_handler)
     priv->action_idle_handler = g_idle_add (idle_do_action, cally_actor);
 
-  return TRUE;
+  did_action = TRUE;
+
+out:
+  g_clear_object (&set);
+
+  return did_action;
 }
 
 static gboolean