[ekohl] 64734: [SETUPAPI] Load a property sheet extension dll only once, otherwise we might leak module handles.

Author: ekohl
Date: Mon Oct 13 18:31:55 2014
New Revision: 64734
URL: http://svn.reactos.org/svn/reactos?rev=64734&view=rev
Log:
[SETUPAPI]
Load a property sheet extension dll only once, otherwise we might leak module handles.
Modified:
    trunk/reactos/dll/win32/setupapi/devclass.c
Modified: trunk/reactos/dll/win32/setupapi/devclass.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/setupapi/devclas…
==============================================================================
--- trunk/reactos/dll/win32/setupapi/devclass.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/setupapi/devclass.c [iso-8859-1] Mon Oct 13 18:31:55 2014
@@ -1272,14 +1272,22 @@
         if (DeviceInfoData)
         {
             struct DeviceInfo *devInfo = (struct DeviceInfo
*)DeviceInfoData->Reserved;
-            devInfo->hmodDevicePropPageProvider = hModule;
-            devInfo->pDevicePropPageProvider = pPropPageProvider;
+
+            if (devInfo->hmodDevicePropPageProvider == NULL)
+            {
+                devInfo->hmodDevicePropPageProvider = hModule;
+                devInfo->pDevicePropPageProvider = pPropPageProvider;
+            }
         }
         else
         {
             struct DeviceInfoSet *devInfoSet = (struct DeviceInfoSet *)DeviceInfoSet;
-            devInfoSet->hmodClassPropPageProvider = hModule;
-            devInfoSet->pClassPropPageProvider = pPropPageProvider;
+
+            if (devInfoSet->hmodClassPropPageProvider == NULL)
+            {
+                devInfoSet->hmodClassPropPageProvider = hModule;
+                devInfoSet->pClassPropPageProvider = pPropPageProvider;
+            }
         }
         InitialNumberOfPages = PropertySheetHeader->nPages;