From bec2eac3a4f987a1268dd1ec9a864349879082ef Mon Sep 17 00:00:00 2001
From: Ilija Hadzic <ihadzic@research.bell-labs.com>
Date: Tue, 29 Oct 2013 11:09:42 -0400
Subject: [PATCH] drm: eliminate old_fb from drm_crtc_helper_set_config

Old framebuffer is stored in save_set.fb and it is
the same value that is later stored in old_fb.
This makes old_fb redundant so we can replace
it with save_set.fb.

Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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