[tfaber] 66207: [NTOS] - Avoid removing list entry if the list is empty in IopUnQueueIrpFromThread CORE-8419

Author: tfaber
Date: Sun Feb  8 14:15:45 2015
New Revision: 66207

URL: http://svn.reactos.org/svn/reactos?rev=66207&view=rev
Log:
[NTOS]
- Avoid removing list entry if the list is empty in IopUnQueueIrpFromThread
CORE-8419

Modified:
    trunk/reactos/ntoskrnl/include/internal/io_x.h

Modified: trunk/reactos/ntoskrnl/include/internal/io_x.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/io_x.h	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/include/internal/io_x.h	[iso-8859-1] Sun Feb  8 14:15:45 2015
@@ -51,6 +51,8 @@
 IopUnQueueIrpFromThread(IN PIRP Irp)
 {
     /* Remove it from the list and reset it */
+    if (IsListEmpty(&Irp->ThreadListEntry))
+        return;
     RemoveEntryList(&Irp->ThreadListEntry);
     InitializeListHead(&Irp->ThreadListEntry);
 }