From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Subject: Re: [PATCH] drm/i915: don't set unpin_work if
 vblank_get fails
Date: Mon, 29 Aug 2011 09:44:52 -0700
Message-ID: <20110829094452.7a5adf03@jbarnes-desktop>
References: <20110822110531.57d85c32@jbarnes-desktop>
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On Mon, 22 Aug 2011 11:05:31 -0700
Jesse Barnes <jbarnes@virtuousgeek.org> wrote:

> This fixes a race where we may try to finish a page flip and decrement
> the refcount even if our vblank_get failed and we ended up with a
> spurious flip pending interrupt.
> 
> Fixes https://bugs.freedesktop.org/show_bug.cgi?id=34211.
> 
> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

Updated patch.  Though now I've lost track of the outstanding
issues...  IIRC we still have another race here, but it's unrelated to
the one in the bug report.

Jesse