diff --git a/net/sunrpc/auth_gss/gss_rpc_upcall.c b/net/sunrpc/auth_gss/gss_rpc_upcall.c
index 2d33ddf..3f874d7 100644
--- a/net/sunrpc/auth_gss/gss_rpc_upcall.c
+++ b/net/sunrpc/auth_gss/gss_rpc_upcall.c
@@ -137,6 +137,7 @@
 {
 	mutex_init(&sn->gssp_lock);
 	sn->gssp_clnt = NULL;
+	init_waitqueue_head(&sn->gssp_wq);
 }
 
 int set_gssp_clnt(struct net *net)
@@ -153,6 +154,7 @@
 		sn->gssp_clnt = clnt;
 	}
 	mutex_unlock(&sn->gssp_lock);
+	wake_up(&sn->gssp_wq);
 	return ret;
 }