From d34aafec6b1e3ee95c5925988bcf9b5ed2d23e8e Mon Sep 17 00:00:00 2001
From: fbsanchez <fborja.sanchez@artica.es>
Date: Thu, 24 Mar 2022 13:33:18 +0100
Subject: [PATCH] avoid warnings in error.log when non-defined strings

---
 pandora_server/lib/PandoraFMS/Tools.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pandora_server/lib/PandoraFMS/Tools.pm b/pandora_server/lib/PandoraFMS/Tools.pm
index 734170b0ff..f712e0b05b 100755
--- a/pandora_server/lib/PandoraFMS/Tools.pm
+++ b/pandora_server/lib/PandoraFMS/Tools.pm
@@ -1037,6 +1037,7 @@ sub limpia_cadena {
 ################################################################################
 sub clean_blank {
 	my $input = $_[0];
+	return $input unless defined($input);
 	$input =~ s/^\s+//g;
 	$input =~ s/\s+$//g;
 	return $input;