[patch] amdkfd: fix an error handling bug in pqm_create_queue()

[Dan Carpenter]

The call to kernel_queue_uninit(NULL) will trigger a BUG(), and also the
error code is incorrect.

Fixes: 45102048f77e ('amdkfd: Add process queue manager module')
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

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 c7859fc..7ce7a25 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -208,7 +208,7 @@ int pqm_create_queue(struct process_queue_manager *pqm,
        case KFD_QUEUE_TYPE_DIQ:
                kq = kernel_queue_init(dev, KFD_QUEUE_TYPE_DIQ);
                if (kq == NULL) {
-                       kernel_queue_uninit(kq);
+                       retval = -ENOMEM;
                        goto err_create_queue;
                }
                kq->queue->properties.queue_id = *qid;