From 94c9efaef8ea8d94b71f6090d41f4ccd8a58ae43 Mon Sep 17 00:00:00 2001
From: luntik2012 <luntik2012@gmail.com>
Date: Sat, 20 Jan 2018 16:39:16 +0300
Subject: [PATCH] other callback mutex fixes

---
 src/librf625.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/librf625.cpp b/src/librf625.cpp
index 8969ba8..7764796 100644
--- a/src/librf625.cpp
+++ b/src/librf625.cpp
@@ -862,14 +862,16 @@ void rf625::udp_register_callback(rf625_udp_proc proc)
 
 void rf625::udp_unregister_callback()
 {
+    m_callback_mx.lock();
+
     if (m_callback) {
-        m_callback_mx.lock();
         m_callback = nullptr;
         m_thread->join();
         delete m_thread;
         m_thread = nullptr;
-        m_callback_mx.unlock();
     }
+
+    m_callback_mx.unlock();
 }
 
 /*! Main routine for processing broadcast commands
-- 
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