tree b78cd5db43f49c88afa9ee27e1a7a4ff8e196334
parent 4ed5978bdd99114db7773cb3d78f2998bd17f694
author David Vrabel <david.vrabel@citrix.com> 1348243464 +0100
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1349364629 -0400

xen/hvc: handle backend CLOSED without CLOSING

Backend drivers shouldn't transistion to CLOSED unless the frontend is
CLOSED.  If a backend does transition to CLOSED too soon then the
frontend may not see the CLOSING state and will not properly shutdown.

So, treat an unexpected backend CLOSED state the same as CLOSING.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>