From a66f0a63698049a55e29a67ee71f895fc40db758 Mon Sep 17 00:00:00 2001
From: Huang Qi <huangqi3@xiaomi.com>
Date: Sat, 11 Feb 2023 08:51:42 +0800
Subject: [PATCH] stdlib: Guard fflush in exit with CONFIG_FILE_STREAM

If CONFIG_FILE_STREAM disabled, fflush is a undefined function.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
---
 libs/libc/stdlib/lib_exit.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/libc/stdlib/lib_exit.c b/libs/libc/stdlib/lib_exit.c
index 2cef9eff1b3..7d82ffdc21a 100644
--- a/libs/libc/stdlib/lib_exit.c
+++ b/libs/libc/stdlib/lib_exit.c
@@ -88,9 +88,11 @@ void exit(int status)
 
   atexit_call_exitfuncs(status, false);
 
+#ifdef CONFIG_FILE_STREAM
   /* Flush all streams */
 
   fflush(NULL);
+#endif
 
   /* Then perform the exit */