From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu, 31 May 2012 12:57:42 +0000 (+0200)
Subject: drm/i915: initialize the parity work only once
X-Git-Tag: v3.6-rc1~83^2~47^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=98fd81cd64674545a30a4f95388f086a626d37d2;p=pandora-kernel.git

drm/i915: initialize the parity work only once

This fixes an (albeit really hard to hit) race resulting in an oops:
- The parity work get scheduled.
- We re-init the irq state and call INIT_WORK again.
- The workqueue code tries to run the work item and stumbles over a
  work item that should be on it's runlist.

Also initiliaze the work item unconditionally like all the others,
it's simpler.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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