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| author | Jesse Zhang <jesse.zhang@amd.com> | 2024-05-08 16:20:49 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-08 07:53:08 +0200 |
| commit | 01cd55b971131b07b7ff8d622fa93bb4f8be07df (patch) | |
| tree | 587fd2f93e0797899a0002e3d75719140385b93f | |
| parent | 1b73ea3d97cc23f9b16d10021782b48397d2b517 (diff) | |
drm/amdgpu: fix the waring dereferencing hive
[ 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>
| -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 8764ff7ed97e0..f8740ad08af41 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -1297,6 +1297,9 @@ 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; |