[pve-devel] [PATCH container 5/5] command: get_cgroup_path: handle undef subsystem

[Wolfgang Bumiller]

Signed-off-by: Wolfgang Bumiller <w.bumiller at proxmox.com>
---
 src/PVE/LXC/Command.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PVE/LXC/Command.pm b/src/PVE/LXC/Command.pm
index 825c354..0a52d47 100644
--- a/src/PVE/LXC/Command.pm
+++ b/src/PVE/LXC/Command.pm
@@ -165,7 +165,7 @@ sub get_cgroup_path($;$$) {
     my ($res, $data) = simple_command(
 	$vmid,
 	$limiting ? LXC_CMD_GET_LIMITING_CGROUP : LXC_CMD_GET_CGROUP,
-	pack('Z*', $subsystem),
+	defined($subsystem) && pack('Z*', $subsystem),
     );
     return undef if !defined $res;
 
-- 
2.20.1