Don't pass a NULL pointer as offset when creating a IRP_MJ_READ irp.

Modified: trunk/reactos/drivers/bus/serenum/detect.c

--- trunk/reactos/drivers/bus/serenum/detect.c	2005-04-28 21:17:07 UTC (rev 14850)
+++ trunk/reactos/drivers/bus/serenum/detect.c	2005-04-28 21:56:36 UTC (rev 14851)
@@ -71,14 +71,16 @@

 	PIRP Irp;
 	IO_STATUS_BLOCK ioStatus;
 	KEVENT event;

+	LARGE_INTEGER zero;

 	NTSTATUS Status;
 	
 	KeInitializeEvent(&event, NotificationEvent, FALSE);

+	zero.QuadPart = 0;

 	Irp = IoBuildSynchronousFsdRequest(
 		IRP_MJ_READ,
 		LowerDevice,
 		Buffer, BufferSize,

-		0,

+		&zero,

 		&event,
 		&ioStatus);
 	if (!Irp)
@@ -422,6 +424,10 @@

 	UNICODE_STRING CompatibleIds;
 	NTSTATUS Status;
 	

+	DPRINT("Serenum: SerenumDetectLegacyDevice(DeviceObject %p, LowerDevice %p)\n",
+		DeviceObject,
+		LowerDevice);
+	

 	RtlZeroMemory(Buffer, sizeof(Buffer));
 	
 	/* Reset UART */