From ebc8d730f1b1a95399c5c4cdd6f010aabf7a186d Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Fri, 2 Dec 2016 16:39:50 +1100
Subject: [PATCH] extmod/moduselect: Use stream helper function instead of
 ad-hoc code.

---
 extmod/moduselect.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/extmod/moduselect.c b/extmod/moduselect.c
index 2fc19cdf0..a19901e17 100644
--- a/extmod/moduselect.c
+++ b/extmod/moduselect.c
@@ -55,11 +55,7 @@ STATIC void poll_map_add(mp_map_t *poll_map, const mp_obj_t *obj, mp_uint_t obj_
         mp_map_elem_t *elem = mp_map_lookup(poll_map, mp_obj_id(obj[i]), MP_MAP_LOOKUP_ADD_IF_NOT_FOUND);
         if (elem->value == NULL) {
             // object not found; get its ioctl and add it to the poll list
-            mp_obj_type_t *type = mp_obj_get_type(obj[i]);
-            const mp_stream_p_t *stream_p = type->protocol;
-            if (stream_p == NULL || stream_p->ioctl == NULL) {
-                nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "object with stream.ioctl required"));
-            }
+            const mp_stream_p_t *stream_p = mp_get_stream_raise(obj[i], MP_STREAM_OP_IOCTL);
             poll_obj_t *poll_obj = m_new_obj(poll_obj_t);
             poll_obj->obj = obj[i];
             poll_obj->ioctl = stream_p->ioctl;
-- 
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