[fix] return "EINVAL" if "count" is zero.

6dd6929b · liuxianliang · guo · 75a55f20 · 6dd6929b
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components/libc/posix/pthreads/pthread_barrier.c components/libc/posix/pthreads/pthread_barrier.c +2 -0

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--- 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);