From 3cd124736ca440f1f7812f0692eb05e099f4f76f Mon Sep 17 00:00:00 2001
From: Jan Musinsky <musinsky@gmail.com>
Date: Wed, 8 Apr 2026 17:09:11 +0200
Subject: [PATCH] [CTP] fix quality result for empty histogram

---
 Modules/CTP/src/RawDataReaderCheck.cxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Modules/CTP/src/RawDataReaderCheck.cxx b/Modules/CTP/src/RawDataReaderCheck.cxx
index ea3353dbe4..a86ef2cdac 100644
--- a/Modules/CTP/src/RawDataReaderCheck.cxx
+++ b/Modules/CTP/src/RawDataReaderCheck.cxx
@@ -107,6 +107,9 @@ Quality RawDataReaderCheck::check(std::map<std::string, std::shared_ptr<MonitorO
         }
       }
       result.set(setQualityResult(mVecBadBC, mVecMediumBC));
+      if (h->GetEntries() == 0) {
+        result.set(Quality::Bad);
+      }
     } else if (mo->getName() == "inputs") {
       if (mHistInputPrevious) {
         checkChange(h, mHistInputPrevious);