From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 12 Feb 2014 22:44:34 +0000 (+0100)
Subject: drm/i915: protect ringbuffer sarea update behind !MODESET
X-Git-Tag: v3.15-rc1~51^2~59^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb19e2ac7cc0f4addbdb1577501a4cdfb6183e7d;p=pandora-kernel.git

drm/i915: protect ringbuffer sarea update behind !MODESET

Avoids surprises when userspace races open/closes against this.

Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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