X-Git-Url: https://git.reactos.org/?p=reactos.git;a=blobdiff_plain;f=reactos%2Fntoskrnl%2Fio%2Fpnpmgr%2Fpnpmgr.c;h=e8418893452e6c09bd65fc86e51e8250e2a8a1da;hp=f0f7a17d7c9eaf8e5d1a0375a6aaa2049ed66697;hb=1c571af17a91de0f9d1f30e4595ad7d7c8de67c1;hpb=f57f4193e5998f47873adf3053bd566196a56e4b

diff --git a/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c b/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c
index f0f7a17d7c9..e8418893452 100644
--- a/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c
+++ b/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c
@@ -1420,7 +1420,7 @@ IopActionInterrogateDeviceStack(PDEVICE_NODE DeviceNode,
                              sizeof(ULONG));
 
       /* Set 'UINumber' value */
-      if (DeviceCapabilities.UINumber != (ULONG)-1)
+      if (DeviceCapabilities.UINumber != MAXULONG)
       {
          RtlInitUnicodeString(&ValueName, L"UINumber");
          Status = ZwSetValueKey(InstanceKey,
@@ -1893,7 +1893,7 @@ IopActionConfigureChildServices(PDEVICE_NODE DeviceNode,
       RtlInitUnicodeString(&ClassGUID, NULL);
 
       QueryTable[0].Name = L"Service";
-      QueryTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_REQUIRED;
+      QueryTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
       QueryTable[0].EntryContext = Service;
 
       QueryTable[1].Name = L"ClassGUID";
@@ -3078,7 +3078,7 @@ IoGetDeviceProperty(IN PDEVICE_OBJECT DeviceObject,
     case DevicePropertyAddress:
         /* Query the device caps */
         Status = IopQueryDeviceCapabilities(DeviceNode, &DeviceCaps);
-        if (NT_SUCCESS(Status) && (DeviceCaps.Address != (ULONG)-1))
+        if (NT_SUCCESS(Status) && (DeviceCaps.Address != MAXULONG))
         {
             /* Return length */
             *ResultLength = sizeof(ULONG);
@@ -3236,7 +3236,7 @@ IoGetDeviceProperty(IN PDEVICE_OBJECT DeviceObject,
         * always contains the enumerator name followed by \\ */
         Ptr = wcschr(DeviceNode->InstancePath.Buffer, L'\\');
         ASSERT(Ptr);
-        Length = (Ptr - DeviceNode->InstancePath.Buffer + 1) * sizeof(WCHAR);
+        Length = (Ptr - DeviceNode->InstancePath.Buffer) * sizeof(WCHAR);
         Data = DeviceNode->InstancePath.Buffer;
         break;