4.7-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Trond Myklebust <trond.mykleb...@primarydata.com>

commit 98b0f80c2396224bbbed81792b526e6c72ba9efa upstream.

On error, the callers expect us to return without bumping
nn->cb_users[].

Signed-off-by: Trond Myklebust <trond.mykleb...@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/nfs/callback.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -275,6 +275,7 @@ static int nfs_callback_up_net(int minor
 err_socks:
        svc_rpcb_cleanup(serv, net);
 err_bind:
+       nn->cb_users[minorversion]--;
        dprintk("NFS: Couldn't create callback socket: err = %d; "
                        "net = %p\n", ret, net);
        return ret;


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