From: Simon Kuhnle <simon@blarzwurst.de>
Date: Thu, 23 Sep 2010 20:44:49 +0000 (+0200)
Subject: return undef if initiating snmp session fails
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph/commitdiff_plain/e0acc35a4f60d2641e71593713acfb32cafef751

return undef if initiating snmp session fails
---

diff --git a/upsgraph.pl b/upsgraph.pl
index 100c52b..9887d0c 100755
--- a/upsgraph.pl
+++ b/upsgraph.pl
@@ -58,6 +58,7 @@ sub fetch_snmp(@) {
 
 	if (!$session) {
 		print STDERR "session error: $error";
+		return undef;
 	}
 
 	$session->translate(0);