From: short <>
Date: Wed, 13 Aug 2003 08:49:52 +0000 (+0000)
Subject: IofCallDriver(): Non-handled 'IRP_MJ_FLUSH_BUFFERS' is silently ignored.
X-Git-Tag: captive-0_9~7
X-Git-Url: http://git.jankratochvil.net/?p=reactos.git;a=commitdiff_plain;h=63e3eff2aafcaaabe65262a4aee1db4ab40d95bc;ds=sidebyside

IofCallDriver(): Non-handled 'IRP_MJ_FLUSH_BUFFERS' is silently ignored.
 - needed to unmount volume of cdfs.sys of NT-5.1sp1
---

diff --git a/ntoskrnl/io/irp.c b/ntoskrnl/io/irp.c
index 2d40f45..cfaf255 100644
--- a/ntoskrnl/io/irp.c
+++ b/ntoskrnl/io/irp.c
@@ -133,7 +133,14 @@ IofCallDriver(PDEVICE_OBJECT DeviceObject,
     DriverObject->MajorFunction[Param->MajorFunction]);
 
   if (!DriverObject->MajorFunction[Param->MajorFunction])
-    KeBugCheck(0);
+    {
+      if (Param->MajorFunction==IRP_MJ_FLUSH_BUFFERS)
+	{
+	  ObDereferenceObject(Param->FileObject);
+	  return STATUS_SUCCESS;
+	}
+      KeBugCheck(0);
+    }
   return DriverObject->MajorFunction[Param->MajorFunction](DeviceObject, Irp);
 }