[Bug 70461] [sna suse] ddx assertion hits

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70461

--- Comment #142 from Chris Wilson <chris at chris-wilson.co.uk> ---
Hah, just because it passed the existing tests doesn't mean that it was good -
especially as those tests missed the first bug.

commit 4eb2d9dc92cec2053c76df5dc923f5552fd06c9e
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Mar 16 08:27:34 2016 +0000

    sna/dri2: Release the dangling chain after decoupling

    After releasing the list, we need to mark it as freed.

    Oversight from commit a11cbb6954f08edd0d8fb5eeca1debb289fdb9af
    Author: Chris Wilson <chris at chris-wilson.co.uk>
    Date:   Tue Mar 15 21:11:48 2016 +0000

        sna/dri2: Cancel all pending events when the window is resized

    which reused the code for destroying the window (where priv->chain will
    not be accessed again afterwards).

    Reported-by: Jiri Slaby <jirislaby at gmail.com>
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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