[gtk/wip/otte/gleanup] xxx: drawcontext without surface

[Benjamin Otte <otte src gnome org>]

commit 3c278ea5748bf4cafeee583ac112b600d71044ed
Author: Benjamin Otte <otte redhat com>
Date:   Mon Jul 5 00:30:55 2021 +0200

    xxx: drawcontext without surface

 gdk/gdkdrawcontext.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)
---
diff --git a/gdk/gdkdrawcontext.c b/gdk/gdkdrawcontext.c
index 51edced6b7..d1c5cd0960 100644
--- a/gdk/gdkdrawcontext.c
+++ b/gdk/gdkdrawcontext.c
@@ -107,15 +107,17 @@ gdk_draw_context_set_property (GObject      *gobject,
 
     case PROP_SURFACE:
       priv->surface = g_value_dup_object (value);
-      g_assert (priv->surface != NULL);
-      priv->surface->draw_contexts = g_slist_prepend (priv->surface->draw_contexts, context);
-      if (priv->display)
+      if (priv->surface)
         {
-          g_assert (priv->display == gdk_surface_get_display (priv->surface));
-        }
-      else
-        {
-          priv->display = g_object_ref (gdk_surface_get_display (priv->surface));
+          priv->surface->draw_contexts = g_slist_prepend (priv->surface->draw_contexts, context);
+          if (priv->display)
+            {
+              g_assert (priv->display == gdk_surface_get_display (priv->surface));
+            }
+          else
+            {
+              priv->display = g_object_ref (gdk_surface_get_display (priv->surface));
+            }
         }
       break;