vzctl set 0 ... --force: don't SEGV on non-ovz kernel

Commit f18aada added ability to use vzctl set --save --force
on a non-OpenVZ kernel, in order to be able to save some parameters to a
configuration file, even if you're not running OpenVZ kernel.

This required patching a few places to check that h != NULL.
One place that was missing is set_ve0(). Fix it.

Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed