[hpoussin] 17514: Fix IRP_MJ_QUERY_INFORMATION/FileStandardInformation (current code was trying to dereference NULL pointer)

Fix IRP_MJ_QUERY_INFORMATION/FileStandardInformation (current code was
trying to dereference NULL pointer)
Replace MmGetSystemAddressForMdl by MmGetSystemAddressForMdlSafe
Modified: trunk/reactos/drivers/dd/serial/devctrl.c
Modified: trunk/reactos/drivers/dd/serial/info.c
Modified: trunk/reactos/drivers/dd/serial/pnp.c
  _____

Modified: trunk/reactos/drivers/dd/serial/devctrl.c
--- trunk/reactos/drivers/dd/serial/devctrl.c	2005-08-24 15:33:58 UTC
(rev 17513)
+++ trunk/reactos/drivers/dd/serial/devctrl.c	2005-08-24 15:37:04 UTC
(rev 17514)
@@ -31,7 +31,7 @@

case METHOD_IN_DIRECT:
    	case METHOD_OUT_DIRECT:
    		*BufferIn = Irp->AssociatedIrp.SystemBuffer;
-			*BufferOut =
MmGetSystemAddressForMdl(Irp->MdlAddress);
+			*BufferOut =
MmGetSystemAddressForMdlSafe(Irp->MdlAddress, NormalPagePriority);
    		break;
    	case METHOD_NEITHER:
    		*BufferIn =
IoGetCurrentIrpStackLocation(Irp)->Parameters.DeviceIoControl.Type3Input
Buffer;
  _____

Modified: trunk/reactos/drivers/dd/serial/info.c
--- trunk/reactos/drivers/dd/serial/info.c	2005-08-24 15:33:58 UTC
(rev 17513)
+++ trunk/reactos/drivers/dd/serial/info.c	2005-08-24 15:37:04 UTC
(rev 17514)
@@ -38,6 +38,7 @@

Status = STATUS_BUFFER_OVERFLOW;
    		else if (!StandardInfo)
    			Status = STATUS_INVALID_PARAMETER;
+			else
    		{
    			StandardInfo->AllocationSize.QuadPart =
0;
    			StandardInfo->EndOfFile.QuadPart = 0;
  _____

Modified: trunk/reactos/drivers/dd/serial/pnp.c
--- trunk/reactos/drivers/dd/serial/pnp.c	2005-08-24 15:33:58 UTC
(rev 17513)
+++ trunk/reactos/drivers/dd/serial/pnp.c	2005-08-24 15:37:04 UTC
(rev 17514)
@@ -274,7 +274,7 @@

if (NT_SUCCESS(Status))
    {
    	/* Key = \Device\Serialx, Value = COMx */
-		ZwSetValueKey(hKey, &DeviceName, 0, REG_SZ,
&ComPortBuffer, ComPort.Length + sizeof(WCHAR));
+		ZwSetValueKey(hKey, &DeviceName, 0, REG_SZ,
ComPortBuffer, ComPort.Length + sizeof(WCHAR));
    	ZwClose(hKey);
    }