[tfaber] 74302: [HIDCLASS] Patch by Lesan Ilie: - Avoid over-allocating the DEVICE_RELATIONS structure in HidClassPDO_CreatePDO - Allocate device relations from paged pool CORE-13052 #resolve

Author: tfaber
Date: Fri Apr 14 09:55:17 2017
New Revision: 74302

URL: http://svn.reactos.org/svn/reactos?rev=74302&view=rev
Log:
[HIDCLASS]
Patch by Lesan Ilie:
- Avoid over-allocating the DEVICE_RELATIONS structure in HidClassPDO_CreatePDO
- Allocate device relations from paged pool
CORE-13052 #resolve

Modified:
    trunk/reactos/drivers/hid/hidclass/pdo.c

Modified: trunk/reactos/drivers/hid/hidclass/pdo.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/hid/hidclass/pdo.c…
==============================================================================
--- trunk/reactos/drivers/hid/hidclass/pdo.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/hid/hidclass/pdo.c	[iso-8859-1] Fri Apr 14 09:55:17 2017
@@ -652,8 +652,8 @@
     //
     // first allocate device relations
     //
-    Length = sizeof(DEVICE_RELATIONS) + sizeof(PDEVICE_OBJECT) *
FDODeviceExtension->Common.DeviceDescription.CollectionDescLength;
-    DeviceRelations = ExAllocatePoolWithTag(NonPagedPool, Length, HIDCLASS_TAG);
+    Length = FIELD_OFFSET(DEVICE_RELATIONS, Objects) + sizeof(PDEVICE_OBJECT) *
FDODeviceExtension->Common.DeviceDescription.CollectionDescLength;
+    DeviceRelations = ExAllocatePoolWithTag(PagedPool, Length, HIDCLASS_TAG);
     if (!DeviceRelations)
     {
         //