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| author |   Lijo Lazar <lijo.lazar@amd.com> | 2023-11-29 12:37:34 +0530 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2023-12-06 15:22:37 -0500 |
| commit | 6146081d58e3dd0c50ceb5a70a6906640727ff96 (patch) | |
| tree | 0e59b2a556d3d262d76b8b90f470c4347c59ffd1 | |
| parent | drm/amd/amdgpu: Add SMUIO headers for 10.0.2 (diff) | |
| download | linux-rng-6146081d58e3dd0c50ceb5a70a6906640727ff96.tar.xz linux-rng-6146081d58e3dd0c50ceb5a70a6906640727ff96.zip | |
drm/amdgpu: Add NULL checks for function pointers
Check if function is implemented before making the call.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -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 9ad4d6d3122b..9043ebf1e161 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -1424,9 +1424,11 @@ 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 */ @@ -1441,9 +1443,11 @@ 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, |