From f8c06894c5ff80158cc768616496d045477520cd Mon Sep 17 00:00:00 2001
From: lbernstone <lbernstone@gmail.com>
Date: Thu, 26 Sep 2019 10:12:52 -0600
Subject: [PATCH] Better cleanup on mount failures, as the idf api now seems to
 assign handle and mountpoint before failing. Fixes #3265 (#3282)

---
 libraries/FFat/src/FFat.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libraries/FFat/src/FFat.cpp b/libraries/FFat/src/FFat.cpp
index b61a8e3f..0d2b2cb2 100644
--- a/libraries/FFat/src/FFat.cpp
+++ b/libraries/FFat/src/FFat.cpp
@@ -58,6 +58,8 @@ bool F_Fat::begin(bool formatOnFail, const char * basePath, uint8_t maxOpenFiles
     esp_err_t err = esp_vfs_fat_spiflash_mount(basePath, partitionLabel, &conf, &_wl_handle);
     if(err){
         log_e("Mounting FFat partition failed! Error: %d", err);
+        esp_vfs_fat_spiflash_unmount(basePath, _wl_handle);
+        _wl_handle = WL_INVALID_HANDLE;
         return false;
     }
     _impl->mountpoint(basePath);