drm/amdkfd: PQM handle queue creation fault

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

Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>

1 files changed, 3 insertions, 0 deletions

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 47526780d736..326d26881afd 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->unregister_process(dev->dqm, &pdd->qpd);
         return retval;
 }