From 549a75498151370214f86eacc788a5832ac01e59 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 3 Sep 2014 19:25:50 +0000
Subject: [PATCH] drm/omap: page_flip: return -EBUSY if flip pending

The DRM documentation says:

"If a page flip is already pending, the page_flip operation must return
-EBUSY."

Currently omapdrm returns -EINVAL instead. Fix omapdrm by returning
-EBUSY.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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