From 693b5e844102bced38b08bc13e758e12fd7f6fde Mon Sep 17 00:00:00 2001
From: Martin Whitaker <mageia@martin-whitaker.me.uk>
Date: Sun, 14 Jan 2018 22:30:56 +0000
Subject: Add check for empty $root when mounting/unmounting filesystems.

Again to make sure we don't accidently affect the build system.
---
 lib/MGA/DrakISO/Utils.pm | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lib/MGA/DrakISO/Utils.pm')

diff --git a/lib/MGA/DrakISO/Utils.pm b/lib/MGA/DrakISO/Utils.pm
index c283d0d..43dc357 100644
--- a/lib/MGA/DrakISO/Utils.pm
+++ b/lib/MGA/DrakISO/Utils.pm
@@ -140,6 +140,7 @@ sub mount {
 
 sub mount_system_fs {
     my ($root) = @_;
+    $root or die;
     mount($root . '/dev',  '/dev', '--bind', '-o', 'ro');
     mount($root . '/proc', 'none', '-t', 'proc');
     mount($root . '/sys',  'none', '-t', 'sysfs');
@@ -148,6 +149,7 @@ sub mount_system_fs {
 
 sub umount_all_in_root {
     my ($root) = @_;
+    $root or die;
     $root = Cwd::abs_path($root);
     my @mounts = grep { $_ =~ $root } split("\n", cat_('/proc/mounts'));
     foreach (reverse(@mounts)) {
-- 
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