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drm/amdgpu: fix the waring dereferencing hive
[ Upstream commit 1940708ccf
]
Check the amdgpu_hive_info *hive that maybe is NULL.
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -1336,6 +1336,9 @@ static void psp_xgmi_reflect_topology_info(struct psp_context *psp,
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uint8_t dst_num_links = node_info.num_links;
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hive = amdgpu_get_xgmi_hive(psp->adev);
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if (WARN_ON(!hive))
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return;
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list_for_each_entry(mirror_adev, &hive->device_list, gmc.xgmi.head) {
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struct psp_xgmi_topology_info *mirror_top_info;
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int j;
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