diff --git a/app/src/main/cpp/GPIOControl.cpp b/app/src/main/cpp/GPIOControl.cpp
index def8f3e9..b09c10bc 100644
--- a/app/src/main/cpp/GPIOControl.cpp
+++ b/app/src/main/cpp/GPIOControl.cpp
@@ -39,8 +39,6 @@ size_t GpioControl::turnOnImpl(const IOT_PARAM& param)
     int fd = -1;
     time_t now = time(NULL);
 
-    m_locker.lock();
-
 // check res???
     for (it = m_items.begin(); it != m_items.end(); ++it)
     {
@@ -63,7 +61,6 @@ size_t GpioControl::turnOnImpl(const IOT_PARAM& param)
         m_items.push_back(item);
         SetCamerastatus(param.cmd, true);
     }
-    m_locker.unlock();
 
     if (oldRef == 0)
     {