[quartz] Use the implementation font-face not the associated

As the associated is now explicitly the font-face used to create the font
by the user, whereas what we require is the current implementation
(quartz) font.

1 files changed, 2 insertions, 4 deletions

diff --git a/src/cairo-quartz-font.c b/src/cairo-quartz-font.c
index 91c16545..a8a9fc51 100644
--- a/src/cairo-quartz-font.c
+++ b/src/cairo-quartz-font.c
@@ -345,10 +345,8 @@ static cairo_quartz_font_face_t *
 _cairo_quartz_scaled_to_face (void *abstract_font)
 {
     cairo_quartz_scaled_font_t *sfont = (cairo_quartz_scaled_font_t*) abstract_font;
-    cairo_font_face_t *font_face = cairo_scaled_font_get_font_face (&sfont->base);
-    if (!font_face || font_face->backend->type != CAIRO_FONT_TYPE_QUARTZ)
-	return NULL;
-
+    cairo_font_face_t *font_face = sfont->base.font_face;
+    assert (font_face->backend->type == CAIRO_FONT_TYPE_QUARTZ);
     return (cairo_quartz_font_face_t*) font_face;
 }