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drm/radeon/dp: return -EIO for flags not zero case
authorAlex Deucher <alexander.deucher@amd.com>
Thu, 3 Jul 2014 15:17:55 +0000 (11:17 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 10 Jul 2014 21:01:28 +0000 (17:01 -0400)
If there are error flags in the aux transaction return
-EIO rather than -EBUSY.  -EIO restarts the whole transaction
while -EBUSY jus retries.  Fixes problematic aux transfers.

Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=80684

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

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