From cdd59983118c02d9c5ba0c116ded1faef47ec452 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 8 Sep 2010 16:30:16 +0100
Subject: [PATCH] drm/i915: Drop crtc->fb pin on disable.

In order to handle disable_functions() where the framebuffer is
decoupled from the crtc we need to unpin the fb in order to prevent a
leak.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29857
Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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