- Fixed releasing of display ownership.

reactos/drivers/video/videoprt

diff -u -r1.2 -r1.3
--- dispatch.c	19 Mar 2004 20:58:32 -0000	1.2
+++ dispatch.c	8 Apr 2004 09:43:55 -0000	1.3
@@ -18,7 +18,7 @@

  * If not, write to the Free Software Foundation,
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  *

- * $Id: dispatch.c,v 1.2 2004/03/19 20:58:32 navaraf Exp $

+ * $Id: dispatch.c,v 1.3 2004/04/08 09:43:55 navaraf Exp $

  */
 
 #include "videoprt.h"

@@ -55,11 +55,11 @@

           &ResetDisplayParametersDeviceExtension->MiniPortDeviceExtension,
           Columns, Rows))
    {

+      ResetDisplayParametersDeviceExtension = NULL;

       return FALSE;
    }
 
    ResetDisplayParametersDeviceExtension = NULL;

-

    return TRUE;
 }
 

@@ -131,6 +131,8 @@

    {
       Irp->IoStatus.Status = STATUS_SUCCESS;
 

+      InterlockedIncrement(&DeviceExtension->DeviceOpened);
+

       /*
        * Storing the device extension pointer in a static variable is an
        * ugly hack. Unfortunately, we need it in VideoPortResetDisplayParameters

@@ -168,10 +170,17 @@

    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp)
 {

+   PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
+

    DPRINT("IntVideoPortDispatchClose\n");
 

-   if (ResetDisplayParametersDeviceExtension != NULL)

+   DeviceExtension = (PVIDEO_PORT_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
+   if (DeviceExtension->DeviceOpened > 1 &&
+       InterlockedDecrement(&DeviceExtension->DeviceOpened) == 0)
+   {
+      ResetDisplayParametersDeviceExtension = DeviceExtension;

       HalReleaseDisplayOwnership();

+   }

 
    Irp->IoStatus.Status = STATUS_SUCCESS;
    IoCompleteRequest(Irp, IO_NO_INCREMENT);

reactos/drivers/video/videoprt

diff -u -r1.9 -r1.10
--- videoprt.h	21 Mar 2004 12:31:19 -0000	1.9
+++ videoprt.h	8 Apr 2004 09:43:55 -0000	1.10
@@ -18,7 +18,7 @@

  * If not, write to the Free Software Foundation,
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  *

- * $Id: videoprt.h,v 1.9 2004/03/21 12:31:19 gvg Exp $

+ * $Id: videoprt.h,v 1.10 2004/04/08 09:43:55 navaraf Exp $

  */
 
 #ifndef VIDEOPRT_H

@@ -71,6 +71,7 @@

    LIST_ENTRY AddressMappingListHead;
    KDPC DpcObject;
    VIDEO_PORT_DRIVER_EXTENSION *DriverExtension;

+   ULONG DeviceOpened;

    CHAR MiniPortDeviceExtension[1];
 } VIDEO_PORT_DEVICE_EXTENSION, *PVIDEO_PORT_DEVICE_EXTENSION;