From: Hervé Poussineau <hpoussin@reactos.org>
Date: Mon, 17 Oct 2005 08:41:00 +0000 (+0000)
Subject: Fix IoGetDeviceProperty, which should never return STATUS_BUFFER_OVERFLOW, but STATUS... 
X-Git-Tag: backups/ros-branch-0_2_9@19949~1344
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=39b4f74f8c8359c307c460f6554c2d18c89b2a47

Fix IoGetDeviceProperty, which should never return STATUS_BUFFER_OVERFLOW, but STATUS_BUFFER_TOO_SMALL

svn path=/trunk/; revision=18506
---

diff --git a/reactos/ntoskrnl/io/pnpmgr.c b/reactos/ntoskrnl/io/pnpmgr.c
index 2408d4b6605..c81aedfc67b 100644
--- a/reactos/ntoskrnl/io/pnpmgr.c
+++ b/reactos/ntoskrnl/io/pnpmgr.c
@@ -325,13 +325,10 @@ IoGetDeviceProperty(
         if (!NT_SUCCESS(Status))
         {
           ExFreePool(ValueInformation);
-          return Status;
-        }
-
-        if (ValueInformation->DataLength > BufferLength)
-        {
-          ExFreePool(ValueInformation);
-          return STATUS_BUFFER_TOO_SMALL;
+          if (Status == STATUS_BUFFER_OVERFLOW)
+            return STATUS_BUFFER_TOO_SMALL;
+          else
+            return Status;
         }
 
         /* FIXME: Verify the value (NULL-terminated, correct format). */