[PATCH 4.0 42/60] drm/amdkfd: allow unregister process with queues

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4.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Oded Gabbay <oded.gabbay@xxxxxxxxx>

commit 1e5ec956a057585adaa1365615c82810b2f5356f upstream.

Sometimes we might unregister process that have queues, because we couldn't
preempt the queues. Until now we blocked it with BUG_ON but instead just
print it as debug.

Reviewed-by: Ben Goz <ben.goz@xxxxxxx>
Signed-off-by: Oded Gabbay <oded.gabbay@xxxxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -429,9 +429,10 @@ static int unregister_process_nocpsch(st
 
 	BUG_ON(!dqm || !qpd);
 
-	BUG_ON(!list_empty(&qpd->queues_list));
+	pr_debug("In func %s\n", __func__);
 
-	pr_debug("kfd: In func %s\n", __func__);
+	pr_debug("qpd->queues_list is %s\n",
+			list_empty(&qpd->queues_list) ? "empty" : "not empty");
 
 	retval = 0;
 	mutex_lock(&dqm->lock);


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