From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 25 Aug 2014 18:52:15 +0000 (-0400)
Subject: drm/radeon: handle broken disabled rb mask gracefully (6xx/7xx) (v2)
X-Git-Tag: omap-fixes-against-v3.17-rc3~38^2~5^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0a5f6e9d60e71e4b6dbeabd97bc887d6b2b0f0c8;p=pandora-kernel.git

drm/radeon: handle broken disabled rb mask gracefully (6xx/7xx) (v2)

This is a port of cedb655a3a7764c3fd946077944383c9e0e68dd4
to older asics.  Fixes a possible divide by 0 if the harvest
register is invalid.

v2: drop some additional harvest munging.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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