From 4eee9af668aedf1e647ec57de0670f88fe89f6de Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@midokura.com>
Date: Wed, 19 Oct 2022 19:14:12 +0900
Subject: [PATCH] file_vopen: Retry as a directory in case of EISDIR

This allows you to open() a directory without O_DIRECTORY.
---
 fs/vfs/fs_open.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/vfs/fs_open.c b/fs/vfs/fs_open.c
index 7b3a7544cc8..b62aaf0cffe 100644
--- a/fs/vfs/fs_open.c
+++ b/fs/vfs/fs_open.c
@@ -186,6 +186,11 @@ static int file_vopen(FAR struct file *filep, FAR const char *path,
       ret = -ENXIO;
     }
 
+  if (ret == -EISDIR)
+    {
+      ret = dir_allocate(filep, desc.relpath);
+    }
+
   if (ret < 0)
     {
       goto errout_with_inode;