From 1d85efa936a224410a7f7d900eef46ad5ec0ca37 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 16 Feb 2019 17:47:12 +0000
Subject: [PATCH] scstadmin: Improve handling of write-only ALUA attributes

git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7933 d57e44dd-8a1f-0410-8b47-8ef2f437770f
---
 scstadmin/scstadmin.sysfs/scst-1.0.0/lib/SCST/SCST.pm | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scstadmin/scstadmin.sysfs/scst-1.0.0/lib/SCST/SCST.pm b/scstadmin/scstadmin.sysfs/scst-1.0.0/lib/SCST/SCST.pm
index be4576410..47523d126 100644
--- a/scstadmin/scstadmin.sysfs/scst-1.0.0/lib/SCST/SCST.pm
+++ b/scstadmin/scstadmin.sysfs/scst-1.0.0/lib/SCST/SCST.pm
@@ -768,10 +768,14 @@ sub aluaAttributes {
 			my $io = new IO::File $pPath, O_RDONLY;
 
 			if (!$io) {
-				return (undef, "deviceGroupsAttributes(): Unable to read device attribute '$attribute': $!");
+				return (undef, "aluaAttributes(): Unable to read device attribute '$attribute': $!");
 			}
 
 			my $value = <$io>;
+			if (!defined($value)) {
+				$value = "";
+			}
+
 			chomp $value;
 
 			my $second_line = <$io>;