diff options
| author | Lijo Lazar <[email protected]> | 2023-11-29 07:07:34 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2023-12-06 21:05:32 +0000 |
| commit | 81577503efb49f4ad76af22f9941d72900ef4aab (patch) | |
| tree | 1f6f1d93c038d9b299f2f228b2af87a225f93d4f | |
| parent | drm/amdgpu: Restrict extended wait to PSP v13.0.6 (diff) | |
| download | kernel-81577503efb49f4ad76af22f9941d72900ef4aab.tar.gz kernel-81577503efb49f4ad76af22f9941d72900ef4aab.zip | |
drm/amdgpu: Add NULL checks for function pointers
Check if function is implemented before making the call.
Signed-off-by: Lijo Lazar <[email protected]>
Reviewed-by: Hawking Zhang <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/soc15.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index c82776e5e9aa..edd6344d1e2b 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -1423,9 +1423,11 @@ static void soc15_common_get_clockgating_state(void *handle, u64 *flags) if (amdgpu_sriov_vf(adev)) *flags = 0; - adev->nbio.funcs->get_clockgating_state(adev, flags); + if (adev->nbio.funcs && adev->nbio.funcs->get_clockgating_state) + adev->nbio.funcs->get_clockgating_state(adev, flags); - adev->hdp.funcs->get_clock_gating_state(adev, flags); + if (adev->hdp.funcs && adev->hdp.funcs->get_clock_gating_state) + adev->hdp.funcs->get_clock_gating_state(adev, flags); if (amdgpu_ip_version(adev, MP0_HWIP, 0) != IP_VERSION(13, 0, 2)) { /* AMD_CG_SUPPORT_DRM_MGCG */ @@ -1440,9 +1442,11 @@ static void soc15_common_get_clockgating_state(void *handle, u64 *flags) } /* AMD_CG_SUPPORT_ROM_MGCG */ - adev->smuio.funcs->get_clock_gating_state(adev, flags); + if (adev->smuio.funcs && adev->smuio.funcs->get_clock_gating_state) + adev->smuio.funcs->get_clock_gating_state(adev, flags); - adev->df.funcs->get_clockgating_state(adev, flags); + if (adev->df.funcs && adev->df.funcs->get_clockgating_state) + adev->df.funcs->get_clockgating_state(adev, flags); } static int soc15_common_set_powergating_state(void *handle, |