From 4bc158e0be4b03b320db9f3b91a84c898ae928a0 Mon Sep 17 00:00:00 2001
From: Haixia Shi <hshi@chromium.org>
Date: Tue, 25 Nov 2014 12:04:02 -0800
Subject: [PATCH] drm/udl: handle page mapping in dmabuf export.
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Fixes dmabuf export failure with -E_NOMEM when the page is not mapped.

Signed-off-by: Haixia Shi <hshi@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Reading git-format-patch failed