[cff] Return correct PS names from pure CFF (#46130).

* src/cff/cffdrivr.c (cff_get_ps_name): Use SFNT service only for
SFNT.

ChangeLog

@@ -1,3 +1,10 @@
+2015-10-06  Werner Lemberg  <wl@gnu.org>
+
+	[cff] Return correct PS names from pure CFF (#46130).
+
+	* src/cff/cffdrivr.c (cff_get_ps_name): Use SFNT service only for
+	SFNT.
+
 2015-10-04  Werner Lemberg  <wl@gnu.org>
 
 	[base] Replace left shifts with multiplication (#46118).

src/cff/cffdrivr.c

@@ -444,7 +444,7 @@
     /* following the OpenType specification 1.7, we return the name stored */
     /* in the `name' table for a CFF wrapped into an SFNT container        */
 
-    if ( sfnt )
+    if ( FT_IS_SFNT( FT_FACE( face ) ) && sfnt )
     {
       FT_Library             library     = FT_FACE_LIBRARY( face );
       FT_Module              sfnt_module = FT_Get_Module( library, "sfnt" );