NFS: Fix nfs_path() to always return a '/' at the beginning of the path

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index f01caec8446..40c76678289 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -65,6 +65,11 @@ char *nfs_path(const char *base,
                 dentry = dentry->d_parent;
         }
         spin_unlock(&dcache_lock);
+        if (*end != '/') {
+                if (--buflen < 0)
+                        goto Elong;
+                *--end = '/';
+        }
         namelen = strlen(base);
         /* Strip off excess slashes in base string */
         while (namelen > 0 && base[namelen - 1] == '/')