Add eassert check for bad default face

* src/xdisp.c (append_space_for_newline): Add an eassert check
that default_face is not null, by calling FACE_FROM_ID instead of
FACE_FROM_ID_OR_NULL.  Initialize a local only if needed.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 593aaa73ac9..2b4dda27157 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -21395,12 +21395,12 @@ append_space_for_newline (struct it *it, bool default_face_p)
         {
           const int local_default_face_id =
             lookup_basic_face (it->w, it->f, DEFAULT_FACE_ID);
-          struct face* default_face =
-            FACE_FROM_ID_OR_NULL (it->f, local_default_face_id);
 
 #ifdef HAVE_WINDOW_SYSTEM
           if (FRAME_WINDOW_P (it->f))
             {
+              struct face *default_face
+                = FACE_FROM_ID (it->f, local_default_face_id);
               struct font *font = (default_face->font
                                    ? default_face->font
                                    : FRAME_FONT (it->f));