[PATCH v4 03/11] drm/amdgpu: unify the userq doorbell object destroy

[Prike Liang]

Unify and refine the userq doorbell object destroy.

Signed-off-by: Prike Liang <prike.li...@amd.com>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c  | 1 -
 drivers/gpu/drm/amd/amdgpu/mes_userqueue.c | 4 ++++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
index c7c9f9e597f1..acaea4416ed2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
@@ -317,7 +317,6 @@ amdgpu_userq_destroy(struct drm_file *filp, int queue_id)
                amdgpu_bo_unpin(queue->db_obj.obj);
                amdgpu_bo_unreserve(queue->db_obj.obj);
        }
-       amdgpu_bo_unref(&queue->db_obj.obj);
        r = amdgpu_userq_unmap_helper(uq_mgr, queue);
        /*TODO: It requires a reset for unmap error*/
        if (r != AMDGPU_USERQ_STATE_UNMAPPED) {
diff --git a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c 
b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
index 1457fb49a794..dbacdfcb6f7b 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
@@ -336,6 +336,10 @@ mes_userq_mqd_destroy(struct amdgpu_userq_mgr *uq_mgr,
                      struct amdgpu_usermode_queue *queue)
 {
        amdgpu_userq_destroy_object(uq_mgr, &queue->fw_obj);
+       /*Validate the doorbell obj whether has unpinned by 
amdgpu_userq_destroy()*/
+       if (queue->db_obj.obj->tbo.pin_count)
+               amdgpu_bo_unpin(queue->db_obj.obj);
+       amdgpu_userq_destroy_object(uq_mgr, &queue->db_obj);
        kfree(queue->userq_prop);
        amdgpu_userq_destroy_object(uq_mgr, &queue->mqd);
 }
-- 
2.34.1