[Bug 1292102] Re: AttributeError: 'NoneType' object has no attribute 'obj' (driver.obj.release_segment(session, segment))

[OpenStack Infra]

Reviewed:  https://review.openstack.org/111263
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=ad82fadf546d39f3c905b5fb633f64afb7875a6f
Submitter: Jenkins
Branch:    stable/icehouse

commit ad82fadf546d39f3c905b5fb633f64afb7875a6f
Author: Kevin Benton <blak111 at gmail.com>
Date:   Sun Apr 6 04:57:36 2014 -0700

    Verify ML2 type driver exists before calling del
    
    Verifies that an ML2 type driver exists for a given
    segment type before attempting to call the release_segment
    method on it. Logs an error if a type driver is not
    found.
    
    This covers the case where a segment is created with
    a given type and then ML2 is reconfigured without
    support for that type.
    
    DocImpact
    The ML2 documentation should be updated with a warning
    that disabling a network type driver and re-enabling
    it later may lead to possible DB inconsistencies.
    
    Closes-Bug: #1292102
    Change-Id: I65a35abf3ed57347bb6e8fee228f8c0697217c00
    (cherry picked from commit af89d74d2961db6a04572375150ad908c9e72e78)


** Tags added: in-stable-icehouse

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https://bugs.launchpad.net/bugs/1292102

Title:
  AttributeError: 'NoneType' object has no attribute 'obj'
  (driver.obj.release_segment(session, segment))

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