Fix crash when executing `FontFile.get_face_count`

modules/text_server_adv/text_server_adv.cpp

@@ -1940,12 +1940,12 @@ int64_t TextServerAdvanced::font_get_face_count(const RID &p_font_rid) const {
 		fargs.flags = FT_OPEN_MEMORY;
 		fargs.stream = &stream;
 
-		FT_Face tmp_face;
+		FT_Face tmp_face = nullptr;
 		error = FT_Open_Face(ft_library, &fargs, -1, &tmp_face);
 		if (error == 0) {
 			face_count = tmp_face->num_faces;
+			FT_Done_Face(tmp_face);
 		}
-		FT_Done_Face(tmp_face);
 #endif
 	}
 

modules/text_server_fb/text_server_fb.cpp

@@ -1039,12 +1039,12 @@ int64_t TextServerFallback::font_get_face_count(const RID &p_font_rid) const {
 		fargs.flags = FT_OPEN_MEMORY;
 		fargs.stream = &stream;
 
-		FT_Face tmp_face;
+		FT_Face tmp_face = nullptr;
 		error = FT_Open_Face(ft_library, &fargs, -1, &tmp_face);
 		if (error == 0) {
 			face_count = tmp_face->num_faces;
+			FT_Done_Face(tmp_face);
 		}
-		FT_Done_Face(tmp_face);
 #endif
 	}