[mutter] kms-impl/simple: Discard pending flips when finalizing

[Marge Bot <marge-bot src gnome org>]

commit 2ed4e8c90695acbd3d5e83a1357c30ab10e8bad6
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Apr 15 16:32:53 2021 +0200

    kms-impl/simple: Discard pending flips when finalizing
    
    Removing the reference isn't enough, the callbacks needs to be invoked
    so the buffer state machinery gets notified about the page flips being
    discarded.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1822>

 src/backends/native/meta-kms-impl-device-simple.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/src/backends/native/meta-kms-impl-device-simple.c 
b/src/backends/native/meta-kms-impl-device-simple.c
index 21ced99e8a..480dcb7506 100644
--- a/src/backends/native/meta-kms-impl-device-simple.c
+++ b/src/backends/native/meta-kms-impl-device-simple.c
@@ -1477,10 +1477,12 @@ meta_kms_impl_device_simple_finalize (GObject *object)
 
   g_list_free_full (impl_device_simple->pending_page_flip_retries,
                     (GDestroyNotify) retry_page_flip_data_free);
-  g_list_free_full (impl_device_simple->postponed_page_flip_datas,
-                    (GDestroyNotify) meta_kms_page_flip_data_discard_in_impl);
-  g_list_free_full (impl_device_simple->postponed_mode_set_fallback_datas,
-                    (GDestroyNotify) meta_kms_page_flip_data_discard_in_impl);
+  dispatch_page_flip_datas (&impl_device_simple->postponed_page_flip_datas,
+                            (GFunc) meta_kms_page_flip_data_discard_in_impl,
+                            NULL);
+  dispatch_page_flip_datas (&impl_device_simple->postponed_mode_set_fallback_datas,
+                            (GFunc) meta_kms_page_flip_data_discard_in_impl,
+                            NULL);
 
   g_clear_pointer (&impl_device_simple->mode_set_fallback_feedback_source,
                    g_source_destroy);