There is a very unlikely use after free bug and a memory leak in
live_update_start() of xenstore_control. Fix those.
Coverity-Id: 1472399
Fixes: 7f97193e6a ("tools/xenstore: add live update command to xenstore-control")
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>