From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Fri, 16 May 2014 16:40:24 +0000 (+0300)
Subject: drm/i915: Simplify the uncleared FIFO underrun detection
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~44^2~38^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29c6b0c5ee33d54ada586040eca2a258f0ce0650;p=pandora-kernel.git

drm/i915: Simplify the uncleared FIFO underrun detection

Checking whether the error interrupt was enabled or not isn't really
necessary when we check for uncleared FIFO underruns. If it was enabled
we'll race with the interrupt handler a bit, but that seems OK as we
still claim the interrupt.

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