File 0847-ct-Fix-crash-in-ct_hooks_lock.patch of Package erlang

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File 0847-ct-Fix-crash-in-ct_hooks_lock.patch of Package erlang (Revision b4f72044e1af8cfe32130ab849a401a1)

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From d43ff28cf3b6cc1afa46027143cc6e33368dc008 Mon Sep 17 00:00:00 2001
From: Lukas Larsson <lukas@erlang.org>
Date: Wed, 5 Jan 2022 17:17:15 +0100
Subject: [PATCH 3/5] ct: Fix crash in ct_hooks_lock

If a process with a hook lock crashes when it is the
only process with a lock we should return to an unlocked
state and continue as normal.
---
 lib/common_test/src/ct_hooks_lock.erl | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/common_test/src/ct_hooks_lock.erl b/lib/common_test/src/ct_hooks_lock.erl
index be50a33e01..16c95b9b46 100644
--- a/lib/common_test/src/ct_hooks_lock.erl
+++ b/lib/common_test/src/ct_hooks_lock.erl
@@ -109,7 +109,11 @@ handle_info({'DOWN',Ref,process,Pid,_},
     gen_server:reply(NextFrom, locked),
     NextRef = monitor(process, NextPid),
     {noreply,State#state{ locked = {true, NextPid, NextRef},
-			  requests = Rest } }.
+			  requests = Rest } };
+handle_info({'DOWN',Ref,process,Pid,_},
+	    #state{ locked = {true, Pid, Ref},
+		    requests = [] } = State) ->
+    {noreply, State#state{ locked = false } }.
 
 terminate(_Reason, _State) ->
     ok.
-- 
2.31.1

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File 0847-ct-Fix-crash-in-ct_hooks_lock.patch of Package erlang (Revision b4f72044e1af8cfe32130ab849a401a1)

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