nfsd4; fix session reference count leak

Note the session has to be put() here regardless of what happens to the
client.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

fs/nfsd/nfs4state.c

@@ -714,7 +714,6 @@ release_session_client(struct nfsd4_session *session)
 	} else
 		renew_client_locked(clp);
 	spin_unlock(&client_lock);
-	nfsd4_put_session(session);
 }
 
 /* must be called under the client_lock */