conf: don't return a clobbered errno value
conf: don't return a clobbered errno value

Signed-off-by: Wolfgang Bumiller <bac7898f539fd233d9ce33be7a9eda13ee647930@proxmox.com>

hallyn/lxc,caglar10ur/lxc,hallyn/lxc,ss1h2a3tw/lxc,hallyn/lxc,caglar10ur/lxc,ss1h2a3tw/lxc,ss1h2a3tw/lxc,caglar10ur/lxc