From e02d6e616b0e8970fb364c528db7df3aa90a381f Mon Sep 17 00:00:00 2001
From: misonyo <misonyo@foxmail.com>
Date: Mon, 21 Jan 2019 21:59:39 +0800
Subject: [PATCH] [driver/ringbuffer]illegal access to freed memory

---
 components/drivers/src/ringbuffer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/components/drivers/src/ringbuffer.c b/components/drivers/src/ringbuffer.c
index 2e078ae053..0acdbbd38c 100644
--- a/components/drivers/src/ringbuffer.c
+++ b/components/drivers/src/ringbuffer.c
@@ -340,6 +340,7 @@ struct rt_ringbuffer* rt_ringbuffer_create(rt_uint16_t size)
     if (pool == RT_NULL)
     {
         rt_free(rb);
+        rb = RT_NULL;
         goto exit;
     }
     rt_ringbuffer_init(rb, pool, size);
-- 
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