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| author | Jesse Zhang <jesse.zhang@amd.com> | 2024-05-08 16:20:49 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-05-13 16:11:53 -0400 |
| commit | 1940708ccf5aff76de4e0b399f99267c93a89193 (patch) | |
| tree | b291acc395d4acdbd1686ea2965fb41bc74aa7ea | |
| parent | b1f7810b05d1950350ac2e06992982974343e441 (diff) | |
drm/amdgpu: fix the waring dereferencing hive
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>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index 37820dd03cab..5a648a657dc6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -1362,6 +1362,9 @@ static void psp_xgmi_reflect_topology_info(struct psp_context *psp, uint8_t dst_num_links = node_info.num_links; hive = amdgpu_get_xgmi_hive(psp->adev); + if (WARN_ON(!hive)) + return; + list_for_each_entry(mirror_adev, &hive->device_list, gmc.xgmi.head) { struct psp_xgmi_topology_info *mirror_top_info; int j; |