From 99531d9bb76c649df15311c717deefdff7cc5b7b Mon Sep 17 00:00:00 2001
From: Daniel Stone <daniels@collabora.com>
Date: Fri, 22 May 2015 13:34:49 +0100
Subject: [PATCH] drm: Allow creating blob properties without copy

Make the data parameter to drm_property_create_blob optional; if
omitted, the copy will be skipped and the data will be empty.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@intel.com>
Tested-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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