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authorLijo Lazar <[email protected]>2023-11-29 12:37:34 +0530
committerAlex Deucher <[email protected]>2023-12-06 16:05:32 -0500
commit81577503efb49f4ad76af22f9941d72900ef4aab (patch)
tree1f6f1d93c038d9b299f2f228b2af87a225f93d4f
parent6fce23a4d8c5f93bf80b7f122449fbb97f1e40dd (diff)
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.c12
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,