From f110dbd795395d84790696b8e22b7272a5375388 Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Wed, 5 Jul 2017 10:38:20 +1000
Subject: [PATCH] extmod/modujson: Properly initialise temporary StringIO
 object.

---
 extmod/modujson.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extmod/modujson.c b/extmod/modujson.c
index bb2d452749..f94ec7db88 100644
--- a/extmod/modujson.c
+++ b/extmod/modujson.c
@@ -277,7 +277,7 @@ STATIC mp_obj_t mod_ujson_loads(mp_obj_t obj) {
     size_t len;
     const char *buf = mp_obj_str_get_data(obj, &len);
     vstr_t vstr = {len, len, (char*)buf, true};
-    mp_obj_stringio_t sio = {{&mp_type_stringio}, &vstr, 0};
+    mp_obj_stringio_t sio = {{&mp_type_stringio}, &vstr, 0, MP_OBJ_NULL};
     return mod_ujson_load(MP_OBJ_FROM_PTR(&sio));
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_ujson_loads_obj, mod_ujson_loads);