From a79c96cf641b053a8a245e4fab7f8d25df2f9052 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 13 May 2022 11:49:53 +0200
Subject: [rebootcontrol] Optional parameter should default to null

Otherwise, passing an undefined variable results in an error
---
 modules-available/rebootcontrol/inc/rebootcontrol.inc.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'modules-available')

diff --git a/modules-available/rebootcontrol/inc/rebootcontrol.inc.php b/modules-available/rebootcontrol/inc/rebootcontrol.inc.php
index 19590670..8269b8df 100644
--- a/modules-available/rebootcontrol/inc/rebootcontrol.inc.php
+++ b/modules-available/rebootcontrol/inc/rebootcontrol.inc.php
@@ -305,10 +305,10 @@ class RebootControl
 
 	/**
 	 * @param array $clientList list of clients containing each keys 'macaddr' and 'clientip'
-	 * @param array $failed list of failed clients from $clientList
+	 * @param ?array $failed list of failed clients from $clientList
 	 * @return ?string taskid of this job
 	 */
-	public static function wakeMachines(array $clientList, array &$failed = [])
+	public static function wakeMachines(array $clientList, array &$failed = null)
 	{
 		$errors = '';
 		$sent = $unknown = $unreachable = [];
-- 
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