From e8f2db7da3f0e60901b09ee6eada99a9e875497f Mon Sep 17 00:00:00 2001
From: Damien George
Date: Wed, 14 Dec 2016 11:40:11 +1100
Subject: py/runtime: Zero out fs_user_mount array in mp_init.

There's no need to force ports to copy-and-paste this initialisation
code.  If FSUSERMOUNT is enabled then this zeroing out must be done.
---
 py/runtime.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'py/runtime.c')

diff --git a/py/runtime.c b/py/runtime.c
index 0ecccbd87..e7e35a081 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -91,6 +91,11 @@ void mp_init(void) {
     MP_STATE_VM(mp_module_builtins_override_dict) = NULL;
     #endif
 
+    #if MICROPY_FSUSERMOUNT
+    // zero out the pointers to the user-mounted devices
+    memset(MP_STATE_VM(fs_user_mount), 0, sizeof(MP_STATE_VM(fs_user_mount)));
+    #endif
+
     #if MICROPY_PY_THREAD_GIL
     mp_thread_mutex_init(&MP_STATE_VM(gil_mutex));
     #endif
-- 
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