diff options
| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2021-11-25 15:41:37 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-12-13 16:33:16 -0500 |
| commit | cace4bff750ff4f55b16c3aa90aa9376d7488929 (patch) | |
| tree | fff18d45a86aaace0f347ef00b4ab05a748b5dbb /drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | |
| parent | 4ac955baa9330742b1a49990d830963f91bfa020 (diff) | |
| download | linux-cace4bff750ff4f55b16c3aa90aa9376d7488929.tar.bz2 | |
drm/amdgpu: check df_funcs and its callback pointers
in case they are not avaiable in early phase
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index 567df2db23ac..a38c6a747fa4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c @@ -265,6 +265,11 @@ static ssize_t amdgpu_xgmi_show_error(struct device *dev, ficaa_pie_ctl_in = AMDGPU_XGMI_SET_FICAA(0x200); ficaa_pie_status_in = AMDGPU_XGMI_SET_FICAA(0x208); + if ((!adev->df.funcs) || + (!adev->df.funcs->get_fica) || + (!adev->df.funcs->set_fica)) + return -EINVAL; + fica_out = adev->df.funcs->get_fica(adev, ficaa_pie_ctl_in); if (fica_out != 0x1f) pr_err("xGMI error counters not enabled!\n"); |