XInputSource: Reload devices on initialize

src/frontend-common/xinput_source.cpp

@@ -115,6 +115,7 @@ bool XInputSource::Initialize(SettingsInterface& si, std::unique_lock<std::mutex
     return false;
   }
 
+  ReloadDevices();
   return true;
 }
 

src/frontend-common/xinput_source.h

@@ -68,9 +68,9 @@ private:
   ControllerDataArray m_controllers;
 
   HMODULE m_xinput_module{};
-  DWORD(WINAPI* m_xinput_get_state)(DWORD, XINPUT_STATE*);
-  DWORD(WINAPI* m_xinput_set_state)(DWORD, XINPUT_VIBRATION*);
-  DWORD(WINAPI* m_xinput_get_capabilities)(DWORD, DWORD, XINPUT_CAPABILITIES*);
+  DWORD(WINAPI* m_xinput_get_state)(DWORD, XINPUT_STATE*) = nullptr;
+  DWORD(WINAPI* m_xinput_set_state)(DWORD, XINPUT_VIBRATION*) = nullptr;
+  DWORD(WINAPI* m_xinput_get_capabilities)(DWORD, DWORD, XINPUT_CAPABILITIES*) = nullptr;
 
   static const char* s_axis_names[NUM_AXES];
   static const char* s_button_names[NUM_BUTTONS];