From 71d40f132d1fe92624b47de21b17611c9d57011b Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Mon, 28 Mar 2016 13:28:41 +0300
Subject: [PATCH] esp8266: Zero out fs_user_mount state on (soft) reset.

Otherwise device stays mounted on soft reset and leads to corruption
(since block device object is now gone).
---
 esp8266/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/esp8266/main.c b/esp8266/main.c
index 986be3a61c..bd1328ec76 100644
--- a/esp8266/main.c
+++ b/esp8266/main.c
@@ -48,6 +48,7 @@ STATIC void mp_reset(void) {
     mp_init();
     mp_obj_list_init(mp_sys_path, 0);
     mp_obj_list_init(mp_sys_argv, 0);
+    memset(MP_STATE_PORT(fs_user_mount), 0, sizeof(MP_STATE_PORT(fs_user_mount)));
     MP_STATE_PORT(mp_kbd_exception) = mp_obj_new_exception(&mp_type_KeyboardInterrupt);
 #if MICROPY_MODULE_FROZEN
     pyexec_frozen_module("boot");