From 698eff29f476a770dfdcb3359ecda62399dec6a3 Mon Sep 17 00:00:00 2001
From: Francisco Paisana <francisco.paisana@softwareradiosystems.com>
Date: Mon, 27 Sep 2021 13:08:45 +0200
Subject: [PATCH] sched,nr: avoid ul pending bytes of each UE becoming negative

---
 srsenb/src/stack/mac/nr/sched_nr_ue.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/srsenb/src/stack/mac/nr/sched_nr_ue.cc b/srsenb/src/stack/mac/nr/sched_nr_ue.cc
index bf7205bf8..476019230 100644
--- a/srsenb/src/stack/mac/nr/sched_nr_ue.cc
+++ b/srsenb/src/stack/mac/nr/sched_nr_ue.cc
@@ -135,6 +135,7 @@ void ue::new_slot(slot_point pdcch_slot)
         }
       }
     }
+    ul_pending_bytes = std::max(0, ul_pending_bytes);
     if (ul_pending_bytes == 0 and last_sr_slot.valid()) {
       // If unanswered SR is pending
       ul_pending_bytes = 512;