From 64accde7bdbe4e850305fae036697944bec029ec Mon Sep 17 00:00:00 2001
From: Saulius Valatka <saulius.vl@gmail.com>
Date: Thu, 5 Jan 2023 13:56:55 +0200
Subject: [PATCH] check for null CQEs to silence clang-analyzer

---
 src/Disks/IO/IOUringReader.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Disks/IO/IOUringReader.cpp b/src/Disks/IO/IOUringReader.cpp
index 01eb84fd2eb..417b25d6f64 100644
--- a/src/Disks/IO/IOUringReader.cpp
+++ b/src/Disks/IO/IOUringReader.cpp
@@ -230,6 +230,12 @@ void IOUringReader::monitorRing()
             break;
         }
 
+        if (!cqe)
+        {
+            LOG_ERROR(log, "Unexpectedly got a null CQE, continuing");
+            continue;
+        }
+
         // it is safe to re-submit events once we take the lock here
         std::unique_lock lock{mutex};