From 05f018b1634dc1fc19fc7edf5fa1031593ad1c65 Mon Sep 17 00:00:00 2001
From: herlesupreeth <herlesupreeth@gmail.com>
Date: Tue, 21 Mar 2023 09:21:51 +0100
Subject: [PATCH] gtpu: fix return value

---
 srsenb/src/stack/upper/gtpu.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/srsenb/src/stack/upper/gtpu.cc b/srsenb/src/stack/upper/gtpu.cc
index 17e8b29af..1cfdba525 100644
--- a/srsenb/src/stack/upper/gtpu.cc
+++ b/srsenb/src/stack/upper/gtpu.cc
@@ -84,11 +84,11 @@ gtpu_tunnel_manager::add_tunnel(uint16_t rnti, uint32_t eps_bearer_id, uint32_t
 {
   if (ran_type == srsran::srsran_rat_t::lte and not is_eps_bearer_id(eps_bearer_id)) {
     logger.warning("Adding TEID with invalid eps-BearerID=%d", eps_bearer_id);
-    return {};
+    return nullptr;
   }
   if (ran_type == srsran::srsran_rat_t::nr and not is_nr_lcid(eps_bearer_id)) {
     logger.warning("Adding TEID with invalid eps-BearerID=%d", eps_bearer_id);
-    return {};
+    return nullptr;
   }
   auto ret_pair = tunnels.insert(tunnel());
   if (not ret_pair) {