drm/amdgpu: fix user ptr race condition
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: monk liu <monk.liu@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index ad5b9c6..e8409fe 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -37,6 +37,7 @@
if (robj) {
if (robj->gem_base.import_attach)
drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
+ amdgpu_mn_unregister(robj);
amdgpu_bo_unref(&robj);
}
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 7d801e0..8da6424 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -95,7 +95,6 @@
bo = container_of(tbo, struct amdgpu_bo, tbo);
amdgpu_update_memory_usage(bo->adev, &bo->tbo.mem, NULL);
- amdgpu_mn_unregister(bo);
mutex_lock(&bo->adev->gem.mutex);
list_del_init(&bo->list);