From 3327ffaa155b646d1ce04755388d1e0f8a522caa Mon Sep 17 00:00:00 2001
From: zhouji <956133287@qq.com>
Date: Sun, 12 Dec 2021 11:16:26 +0800
Subject: [update] 使用memheap内存管理时，rt_malloc 0长度返回RT_NULL,
 与slab与小内存管理等算法保持一致。
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---
 src/memheap.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

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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