From 509d5223ea7153985a8afb3543ea386fa8f720bf Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott@chickadee.tech>
Date: Mon, 7 Aug 2017 15:56:10 -0700
Subject: atmel-samd: Fix crash when fs mount fails and fix mounting internal
 flash. It was broken by the update to 1.9.1. Related to #82

---
 atmel-samd/access_vfs.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'atmel-samd/access_vfs.c')

diff --git a/atmel-samd/access_vfs.c b/atmel-samd/access_vfs.c
index 0eb11b84e..e4a643c0b 100644
--- a/atmel-samd/access_vfs.c
+++ b/atmel-samd/access_vfs.c
@@ -45,6 +45,9 @@
 // The root FS is always at the end of the list.
 static fs_user_mount_t* get_vfs(int index) {
     mp_vfs_mount_t* current_mount = MP_STATE_VM(vfs_mount_table);
+    if (current_mount == NULL) {
+        return NULL;
+    }
     while (current_mount->next != NULL) {
         current_mount = current_mount->next;
     }
-- 
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