[pschweitzer] 74430: [CDFS] Fix returned data handling on directory enumeration. Patch by Giannis Adamopoulos CORE-13143

Author: pschweitzer
Date: Fri Apr 28 19:32:44 2017
New Revision: 74430

URL: http://svn.reactos.org/svn/reactos?rev=74430&view=rev
Log:
[CDFS]
Fix returned data handling on directory enumeration.
Patch by Giannis Adamopoulos

CORE-13143

Modified:
    trunk/reactos/drivers/filesystems/cdfs/dirctl.c

Modified: trunk/reactos/drivers/filesystems/cdfs/dirctl.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/cdfs/d…
==============================================================================
--- trunk/reactos/drivers/filesystems/cdfs/dirctl.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/cdfs/dirctl.c	[iso-8859-1] Fri Apr 28 19:32:44 2017
@@ -689,20 +689,11 @@
 
             if (Status == STATUS_BUFFER_OVERFLOW)
             {
-                if (Buffer0)
-                {
-                    Buffer0->NextEntryOffset = 0;
-                }
                 break;
             }
         }
         else
         {
-            if (Buffer0)
-            {
-                Buffer0->NextEntryOffset = 0;
-            }
-
             if (First)
             {
                 Status = STATUS_NO_SUCH_FILE;
@@ -717,12 +708,13 @@
         Buffer0 = (PFILE_NAMES_INFORMATION)Buffer;
         Buffer0->FileIndex = FileIndex++;
         Ccb->Entry++;
+        BufferLength -= Buffer0->NextEntryOffset;
 
         if (Stack->Flags & SL_RETURN_SINGLE_ENTRY)
         {
             break;
         }
-        BufferLength -= Buffer0->NextEntryOffset;
+
         Buffer += Buffer0->NextEntryOffset;
     }
 
@@ -734,6 +726,7 @@
     if (FileIndex > 0)
     {
         Status = STATUS_SUCCESS;
+        Irp->IoStatus.Information = Stack->Parameters.QueryDirectory.Length -
BufferLength;
     }
 
     return(Status);
@@ -793,6 +786,8 @@
     Irp = IrpContext->Irp;
     DeviceObject = IrpContext->DeviceObject;
 
+    Irp->IoStatus.Information = 0;
+
     switch (IrpContext->MinorFunction)
     {
     case IRP_MN_QUERY_DIRECTORY:
@@ -811,11 +806,6 @@
         break;
     }
 
-    if (Status != STATUS_PENDING)
-    {
-        Irp->IoStatus.Information = 0;
-    }
-
     return(Status);
 }