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drm/amdgpu: fix the waring dereferencing hive

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[ Upstream commit 1940708ccf5aff76de4e0b399f99267c93a89193 ]

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>
This commit is contained in:
Jesse Zhang
2024-05-08 16:20:49 +08:00
committed by Greg Kroah-Hartman
parent 0aad97bf6d
commit 4ab720b6aa
1 changed files with 3 additions and 0 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
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@@ -1336,6 +1336,9 @@ 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;