From 4c18442e536ec24cc5ca23c5bbaa80bd53020b95 Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Sun, 4 Jan 2015 02:31:20 +0300
Subject: [PATCH] drm/radeon: do not leave queue acquired if timeout happens in
 kgd_hqd_destroy()

If timeout happens, kgd_hqd_destroy() just returns -ETIME leaving queue
acquired.
It may cause a deadlock, so the patch proposes to release queue before return.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
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