From 840e3797a5853ca7a6bc701b23719956f8fecd18 Mon Sep 17 00:00:00 2001
From: Wolfgang Link <w.link@proxmox.com>
Date: Wed, 16 May 2018 09:08:06 +0200
Subject: [PATCH] cifs: fix uninitialized warning in check_connection

otherwise this spams the log when check_connection runs into a timeout.
---
 PVE/Storage/CIFSPlugin.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/PVE/Storage/CIFSPlugin.pm b/PVE/Storage/CIFSPlugin.pm
index 1670a5c..724fb1f 100644
--- a/PVE/Storage/CIFSPlugin.pm
+++ b/PVE/Storage/CIFSPlugin.pm
@@ -218,7 +218,8 @@ sub check_connection {
     };
 
     if (my $err = $@) {
-	die "$out_str\n" if ($out_str =~ m/NT_STATUS_ACCESS_DENIED/);
+	die "$out_str\n" if defined($out_str) &&
+	    ($out_str =~ m/NT_STATUS_ACCESS_DENIED/);
 	return 0;
     }