nfs: path_{get,put}() cleanups

Here are some more places where path_{get,put}() can be used instead of
dput()/mntput() pair.

Signed-off-by: Jan Blunck <jblunck@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index fca5180..2f285ef 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -137,8 +137,7 @@
 			goto out_follow;
 		goto out_err;
 	}
-	mntput(nd->path.mnt);
-	dput(nd->path.dentry);
+	path_put(&nd->path);
 	nd->path.mnt = mnt;
 	nd->path.dentry = dget(mnt->mnt_root);
 	schedule_delayed_work(&nfs_automount_task, nfs_mountpoint_expiry_timeout);