From 7119149f8394d063f2f512a7fefc1d733f048867 Mon Sep 17 00:00:00 2001
From: Alexey Yurchenko <alexey.yurchenko@galeracluster.com>
Date: Sun, 19 May 2024 21:26:46 +0300
Subject: [PATCH] If donor loop receives unknown signal from the SST script it
 is an error condition (SST failure), so it should set error code before
 exiting.

Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
---
 sql/wsrep_sst.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sql/wsrep_sst.cc b/sql/wsrep_sst.cc
index 08a3d159e94..13500a83f43 100644
--- a/sql/wsrep_sst.cc
+++ b/sql/wsrep_sst.cc
@@ -1840,6 +1840,8 @@ wait_signal:
       else
       {
         WSREP_WARN("Received unknown signal: '%s'", out);
+        /* since it is the end of the loop, we must set error code */
+        err=-EINVAL;
         proc.wait();
       }
     }