From 93740519d3a3718701e65f88ff9b0d15f09506d7 Mon Sep 17 00:00:00 2001
From: Jordi Sanfeliu <jordi@fibranet.cat>
Date: Wed, 27 Mar 2013 18:58:15 +0100
Subject: [PATCH] avoid use of a possible uninitialized variable in
 to_fahrenheix() function

---
 lib/Monitorix.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Monitorix.pm b/lib/Monitorix.pm
index acc080e..6805f34 100644
--- a/lib/Monitorix.pm
+++ b/lib/Monitorix.pm
@@ -54,6 +54,7 @@ sub max {
 sub to_fahrenheit {
 	my ($config, $celsius) = @_;
 
+	$celsius = $celsius || 0;
 	if(lc($config->{temperatures_scale}) eq "f") {
 		return ($celsius * (9 / 5)) + 32;
 	}