From 88d6678f934ba3f8268618e78c2924738cec668e Mon Sep 17 00:00:00 2001
From: Olga Kornievskaia <aglo@citi.umich.edu>
Date: Tue, 28 Feb 2012 14:07:10 -0500
Subject: [PATCH] [driver] fixing multiple mount bug

When the client has an existing mount but for a different security context
and the new mount fails, don't free up the mount array for a given NetRoot.
---
 sys/nfs41_driver.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/nfs41_driver.c b/sys/nfs41_driver.c
index 24bf665..219f134 100644
--- a/sys/nfs41_driver.c
+++ b/sys/nfs41_driver.c
@@ -2963,7 +2963,8 @@ NTSTATUS nfs41_CreateVNetRoot(
         status = nfs41_mount(&Config, pVNetRootContext->sec_flavor,
             &pVNetRootContext->session, &nfs41d_version);
         if (status != STATUS_SUCCESS) {
-            if (!found_existing_mount) {
+            if (!found_existing_mount && 
+                    IsListEmpty(&pNetRootContext->mounts->head)) {
                 RxFreePool(pNetRootContext->mounts);
                 pNetRootContext->mounts_init = FALSE;
                 pVNetRootContext->session = INVALID_HANDLE_VALUE;