From 6dd6929b8e6981e1fc44cd75fedb63365d7ef36c Mon Sep 17 00:00:00 2001
From: liuxianliang <liuxianliang@rt-thread.com>
Date: Fri, 13 May 2022 10:41:09 +0800
Subject: [PATCH] [fix] return "EINVAL" if "count" is zero.

---
 components/libc/posix/pthreads/pthread_barrier.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/components/libc/posix/pthreads/pthread_barrier.c b/components/libc/posix/pthreads/pthread_barrier.c
index 1a5b7fa3f9..bebd25a455 100644
--- a/components/libc/posix/pthreads/pthread_barrier.c
+++ b/components/libc/posix/pthreads/pthread_barrier.c
@@ -72,6 +72,8 @@ int pthread_barrier_init(pthread_barrier_t           *barrier,
         return EINVAL;
     if (attr && (*attr != PTHREAD_PROCESS_PRIVATE))
         return EINVAL;
+    if (count == 0)
+        return EINVAL;
 
     barrier->count = count;
     pthread_cond_init(&(barrier->cond), NULL);