From 5c8d6934a55a72ecda0e3e95da2f9086ae7fb4ee Mon Sep 17 00:00:00 2001
From: Juha Niskanen <juha.niskanen@haltian.com>
Date: Wed, 13 Jan 2021 19:55:48 +0200
Subject: [PATCH] netutils/ftpd: fix hardfault when initial socket, bind or
 listen fails

Signed-off-by: Juha Niskanen <juha.niskanen@haltian.com>
---
 netutils/ftpd/ftpd.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/netutils/ftpd/ftpd.c b/netutils/ftpd/ftpd.c
index 24c6727f1..e96d91d0b 100644
--- a/netutils/ftpd/ftpd.c
+++ b/netutils/ftpd/ftpd.c
@@ -4496,7 +4496,10 @@ void ftpd_close(FTPD_SESSION handle)
   DEBUGASSERT(handle);
 
   server = (struct ftpd_server_s *)handle;
-  ftpd_account_free(server->head);
+  if (server->head != NULL)
+    {
+      ftpd_account_free(server->head);
+    }
 
   if (server->sd >= 0)
     {