[mutter] screen-cast-src: Destroy hash dmabuf table after stream

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 97175f8fa14171606ecb95d0bf107ef8b2d71b74
Author: Jonas Ådahl <jadahl gmail com>
Date:   Tue Jun 2 18:33:05 2020 +0200

    screen-cast-src: Destroy hash dmabuf table after stream
    
    The stream will clean up the buffers, so let it do that before we
    destroy them under its feet. Note that it'll only do this after the
    following PipeWire commit:
    
        commit fbaa4ddedd84afdffca16f090dcc4b0db8ccfc29
        Author: Wim Taymans <wtaymans redhat com>
        Date:   Mon Jun 1 15:36:09 2020 +0200
    
            stream: allow NULL param and 0 buffers in disconnect
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1283

 src/backends/meta-screen-cast-stream-src.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/backends/meta-screen-cast-stream-src.c b/src/backends/meta-screen-cast-stream-src.c
index e3a85c1013..9b0d2df9e2 100644
--- a/src/backends/meta-screen-cast-stream-src.c
+++ b/src/backends/meta-screen-cast-stream-src.c
@@ -996,8 +996,8 @@ meta_screen_cast_stream_src_finalize (GObject *object)
   if (meta_screen_cast_stream_src_is_enabled (src))
     meta_screen_cast_stream_src_disable (src);
 
-  g_clear_pointer (&priv->dmabuf_handles, g_hash_table_destroy);
   g_clear_pointer (&priv->pipewire_stream, pw_stream_destroy);
+  g_clear_pointer (&priv->dmabuf_handles, g_hash_table_destroy);
   g_clear_pointer (&priv->pipewire_core, pw_core_disconnect);
   g_clear_pointer (&priv->pipewire_context, pw_context_destroy);
   g_source_destroy (&priv->pipewire_source->base);