From bcb6095f1f98fb641ff8f8f310fa7970d7e55803 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Fri, 15 Jul 2016 17:47:00 -0600
Subject: [PATCH] Add an assertion

---
 fs/vfs/fs_open.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/vfs/fs_open.c b/fs/vfs/fs_open.c
index 08a3f24f64..a66f62e869 100644
--- a/fs/vfs/fs_open.c
+++ b/fs/vfs/fs_open.c
@@ -260,6 +260,7 @@ int open(const char *path, int oflags, ...)
        */
 
       fd = (int)OPEN_GETFD(ret);
+      DEBUGASSERT((unsigned)fd < (CONFIG_NFILE_DESCRIPTORS + CONFIG_NSOCKET_DESCRIPTORS));
     }
 #endif