[PATCH] drm/amdkfd: PQM handle queue creation fault

[Oded Gabbay]

From: Ben Goz <ben....@amd.com>

If the first queue created was failed on DQM then PQM should
unregister the process from DQM.

Signed-off-by: Ben Goz <ben.goz at amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index 4752678..40df3b2 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -241,7 +241,10 @@ int pqm_create_queue(struct process_queue_manager *pqm,
 err_create_queue:
        kfree(pqn);
 err_allocate_pqn:
+       /* check if queues list is empty unregister process from device */
        clear_bit(*qid, pqm->queue_slot_bitmap);
+       if (list_empty(&pqm->queues))
+               dev->dqm->ops.unregister_process(dev->dqm, &pdd->qpd);
        return retval;
 }

-- 
1.9.1