From 0d0b02b915a5a6c406ff6b96d89cf7711b47e704 Mon Sep 17 00:00:00 2001
From: Jordi Sanfeliu <jordi@fibranet.cat>
Date: Mon, 10 Dec 2012 17:15:08 +0100
Subject: [PATCH] 3.0: fixed to check if string has any value

---
 3.0/lib/Monitorix.pm | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/3.0/lib/Monitorix.pm b/3.0/lib/Monitorix.pm
index d140f72..0c235eb 100644
--- a/3.0/lib/Monitorix.pm
+++ b/3.0/lib/Monitorix.pm
@@ -35,9 +35,11 @@ sub logger {
 sub trim {
 	my $str = shift;
 
-	$str =~ s/^\s+//;
-	$str =~ s/\s+$//;
-	return $str;
+	if($str) {
+		$str =~ s/^\s+//;
+		$str =~ s/\s+$//;
+		return $str;
+	}
 }
 
 sub get_nvidia_data {