[mjmartin] 40432: - rw.c: After the write wait has been satisfied, check that the pipe is not closed before trying to acquire the mutex. Fix bug #4351.

Author: mjmartin
Date: Fri Apr 10 01:10:04 2009
New Revision: 40432

URL: http://svn.reactos.org/svn/reactos?rev=40432&view=rev
Log:
- rw.c: After the write wait has been satisfied, check that the pipe is not closed before
trying to acquire the mutex. Fix bug #4351.

Modified:
    trunk/reactos/drivers/filesystems/npfs/rw.c

Modified: trunk/reactos/drivers/filesystems/npfs/rw.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/npfs/r…
==============================================================================
--- trunk/reactos/drivers/filesystems/npfs/rw.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/npfs/rw.c [iso-8859-1] Fri Apr 10 01:10:04 2009
@@ -836,6 +836,17 @@
                 Status = STATUS_PIPE_BROKEN;
                 goto done;
             }
+            /* Check that the pipe has not been closed */
+            if (ReaderCcb->PipeState != FILE_PIPE_CONNECTED_STATE)
+            {
+                /* If the other side is valid, fire event */
+                if (Ccb)
+                {
+                    KeResetEvent(&Ccb->WriteEvent);
+                }
+                Status = STATUS_PIPE_BROKEN;
+                goto done;
+            }
             ExAcquireFastMutex(&ReaderCcb->DataListLock);
         }