Revert change disabling redetection of i2c interfaces and fix disconnected WMI failure by always reconnecting before query

ResourceManager.cpp

@@ -474,6 +474,15 @@ void ResourceManager::Cleanup()
         delete rgb_controller;
     }
 
+    std::vector<i2c_smbus_interface *> busses_copy = busses;
+
+    busses.clear();
+
+    for(i2c_smbus_interface* bus : busses_copy)
+    {
+        delete bus;
+    }
+
     /*-------------------------------------------------*\
     | Cleanup HID interface                             |
     \*-------------------------------------------------*/
@@ -636,18 +645,14 @@ void ResourceManager::DetectDevicesThreadFunction()
     detection_percent = 0;
 
     /*-------------------------------------------------*\
-    | Detect i2c interfaces - only perform on first     |
-    | detection                                         |
+    | Detect i2c interfaces                             |
     \*-------------------------------------------------*/
-    if(busses.empty())
-    {
-        LOG_NOTICE("Detecting I2C interfaces");
+    LOG_NOTICE("Detecting I2C interfaces");
 
-        for(unsigned int i2c_bus_detector_idx = 0; i2c_bus_detector_idx < i2c_bus_detectors.size() && detection_is_required.load(); i2c_bus_detector_idx++)
-        {
-            i2c_bus_detectors[i2c_bus_detector_idx]();
-            I2CBusListChanged();
-        }
+    for(unsigned int i2c_bus_detector_idx = 0; i2c_bus_detector_idx < i2c_bus_detectors.size() && detection_is_required.load(); i2c_bus_detector_idx++)
+    {
+        i2c_bus_detectors[i2c_bus_detector_idx]();
+        I2CBusListChanged();
     }
 
     /*-------------------------------------------------*\

wmi/wmi.cpp

@@ -147,6 +147,18 @@ HRESULT Wmi::query(std::string queryStr, std::vector<QueryObj>& queryVectorOut,
     int nIdx = 0;
     IEnumWbemClassObject* pEnumerator = nullptr;
 
+    // Reconnect to server before each query as we were seeing disconnected failures
+    hres = pLoc->ConnectServer(
+        _bstr_t(L"ROOT\\CIMV2"), // Object path of WMI namespace
+        nullptr,                    // User name. NULL = current user
+        nullptr,                    // User password. NULL = current
+        nullptr,                 // Locale. NULL indicates current
+        0,                    // Security flags.
+        nullptr,                 // Authority (for example, Kerberos)
+        nullptr,                 // Context object
+        &pSvc                    // pointer to IWbemServices proxy
+    );
+
     // Make the WMI query
     hres = pSvc->ExecQuery(
         bstr_t("WQL"),