(Fx_list_fonts): Handle 0 for FRAME_FACES (f) [face_id]->font.

diff --git a/src/xfns.c b/src/xfns.c
index 1afdb33a5c878e76437b3ab2bfde3995a3a24d32..1652b9db117b66be5923ba046d7ee454420a56a9 100644 (file)
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -2187,7 +2187,7 @@ fonts), even if they match PATTERN and FACE.")
       if (face_id < 0 || face_id > FRAME_N_FACES (f))
        face_id = 0;
       size_ref = FRAME_FACES (f) [face_id]->font;
-      if (size_ref == (XFontStruct *) (~0))
+      if (size_ref == (XFontStruct *) (~0) || size_ref == NULL)
        size_ref = f->display.x->font;
     }