SUNRPC: init per-net rpcbind spinlock

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index d16ac08..21d106e 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -50,6 +50,7 @@
 	rpc_pipefs_init_net(net);
 	INIT_LIST_HEAD(&sn->all_clients);
 	spin_lock_init(&sn->rpc_client_lock);
+	spin_lock_init(&sn->rpcb_clnt_lock);
 	return 0;
 
 err_unixgid: