From 77589f561bce75e6799e2bc05551486bbef3954a Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Tue, 31 Mar 2015 10:37:22 +0300
Subject: [PATCH] drm/i915: Convert BUGs to WARNs in the video overlay code
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BUG is bad, just use WARN.

Also drop one BUG(!overlay) since we'd oops anyway when dereferencing
it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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