From a10467b58ab92352217c7ab42eafd320bb671565 Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Fri, 3 Mar 2017 15:46:23 +1100
Subject: [PATCH] extmod/modussl_mbedtls: When reading and peer wants to close,
 return 0.

If this particular code is returned then there's no more data, it's not
really an error.
---
 extmod/modussl_mbedtls.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/extmod/modussl_mbedtls.c b/extmod/modussl_mbedtls.c
index f4b551cb9b..ef3f319fe1 100644
--- a/extmod/modussl_mbedtls.c
+++ b/extmod/modussl_mbedtls.c
@@ -192,6 +192,10 @@ STATIC mp_uint_t socket_read(mp_obj_t o_in, void *buf, mp_uint_t size, int *errc
     mp_obj_ssl_socket_t *o = MP_OBJ_TO_PTR(o_in);
 
     int ret = mbedtls_ssl_read(&o->ssl, buf, size);
+    if (ret == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) {
+        // end of stream
+        return 0;
+    }
     if (ret >= 0) {
         return ret;
     }