From 2658410afc313a6c44ae2915074d1e15a6e0ce97 Mon Sep 17 00:00:00 2001
From: Daniel Black <daniel@mariadb.org>
Date: Thu, 28 Jul 2022 15:53:56 +1000
Subject: [PATCH] MDEV-29187: Deadlock output in InnoDB status always shows
 transaction (0)

At some point the incrementing of the transaction counter got dropped.

Thanks Agustin for the bug report.
---
 storage/innobase/lock/lock0lock.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/storage/innobase/lock/lock0lock.cc b/storage/innobase/lock/lock0lock.cc
index d5905e7b523..6a24f369c22 100644
--- a/storage/innobase/lock/lock0lock.cc
+++ b/storage/innobase/lock/lock0lock.cc
@@ -6126,6 +6126,7 @@ namespace Deadlock
       for (trx_t *next= cycle;;)
       {
         next= next->lock.wait_trx;
+        l++;
         const undo_no_t next_weight= TRX_WEIGHT(next) |
           (next->mysql_thd &&
 #ifdef WITH_WSREP