VMware: Attribute error while selecting datastores

[Vipin Balachandran]

Using the new datastore selection logic with a single host fails with error " val instance has no attribute 'obj'"

[Vipin Balachandran (vbala)]

Currently this code path is never executed, but will be called by future bug fixes.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/140655

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/140655
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=01b029e4d3afb181b43cce4b7f7c0185adb9eeac
Submitter: Jenkins
Branch: master

commit 01b029e4d3afb181b43cce4b7f7c0185adb9eeac
Author: Vipin Balachandran <email address hidden>
Date: Wed Dec 10 12:41:08 2014 +0530

    VMware: Fix datastore selection with single host

    Currently, the select_datastore method is called with an empty list of
    ESX hosts. This causes the method to retrieve all the hosts in vCenter
    as candidates for selecting a datastore. The reference to a retrieved
    host is stored in attribute 'obj'. Some of the future bug fixes will
    need to invoke this method with reference to a single ESX host. Such
    invocations will fail with attribute error: 'val instance has no
    attribute 'obj''. This patch fixes the attribute error.

    Closes-Bug: #1401052
    Change-Id: Ib4f48d2ebfbfa3a9ce6a402300d41351548932ef