From 3327ffaa155b646d1ce04755388d1e0f8a522caa Mon Sep 17 00:00:00 2001
From: zhouji <956133287@qq.com>
Date: Sun, 12 Dec 2021 11:16:26 +0800
Subject: [PATCH] =?UTF-8?q?[update]=20=E4=BD=BF=E7=94=A8memheap=E5=86=85?=
 =?UTF-8?q?=E5=AD=98=E7=AE=A1=E7=90=86=E6=97=B6=EF=BC=8Crt=5Fmalloc=200?=
 =?UTF-8?q?=E9=95=BF=E5=BA=A6=E8=BF=94=E5=9B=9ERT=5FNULL,=20=E4=B8=8Eslab?=
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---
 src/memheap.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/memheap.c b/src/memheap.c
index 68a15d1a8e..9c3f570f29 100644
--- a/src/memheap.c
+++ b/src/memheap.c
@@ -850,6 +850,10 @@ void *rt_malloc(rt_size_t size)
 {
     void *ptr;
 
+    /* zero size, return RT_NULL */
+    if (size == 0)
+        return RT_NULL;
+
     /* try to allocate in system heap */
     ptr = rt_memheap_alloc(&_heap, size);
 #ifdef RT_USING_MEMHEAP_AUTO_BINDING
-- 
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