From df9a23c534f57e6f5b06acfbe6db8b636894e0ad Mon Sep 17 00:00:00 2001
From: Meco Man <920369182@qq.com>
Date: Wed, 17 Nov 2021 15:57:15 -0500
Subject: [mutex] use RT_IPC_FLAG_PRIO to replace RT_IPC_FLAG_FIFO

---
 components/cplusplus/cxx_Mutex.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'components/cplusplus')

diff --git a/components/cplusplus/cxx_Mutex.cpp b/components/cplusplus/cxx_Mutex.cpp
index 97d8fa87e1..da6f80985f 100644
--- a/components/cplusplus/cxx_Mutex.cpp
+++ b/components/cplusplus/cxx_Mutex.cpp
@@ -13,7 +13,7 @@ using namespace rtthread;
 
 Mutex::Mutex(const char *name)
 {
-    rt_mutex_init(&mID, name, RT_IPC_FLAG_FIFO);
+    rt_mutex_init(&mID, name, RT_IPC_FLAG_PRIO);
 }
 
 bool Mutex::lock(int32_t millisec)
-- 
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