From af61187587411dca38ff62e720451f08f19c1c82 Mon Sep 17 00:00:00 2001
From: chenjing <chenjing139@huawei.com>
Date: Mon, 26 Apr 2021 16:18:51 +0800
Subject: [PATCH] fix: fix the inappropriate errno in FatFs

The errno of unrecognized fat filesystem changes from ENOENT to ENOTSUP.

Close #I3O8IF
---
 fs/fat/os_adapt/fatfs.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/fat/os_adapt/fatfs.c b/fs/fat/os_adapt/fatfs.c
index 46843f2f..ee39d653 100644
--- a/fs/fat/os_adapt/fatfs.c
+++ b/fs/fat/os_adapt/fatfs.c
@@ -93,10 +93,13 @@ int fatfs_2_vfs(int result)
 
         case FR_NO_FILE:
         case FR_NO_PATH:
-        case FR_NO_FILESYSTEM:
             status = ENOENT;
             break;
 
+        case FR_NO_FILESYSTEM:
+            status = ENOTSUP;
+            break;
+
         case FR_INVALID_NAME:
             status = EINVAL;
             break;