Validate the function pointer for get_clockgating_state
before making a function call.
Signed-off-by: Sunil Khatri <sunil.khatri@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/nv.c | 9 ++++++---
drivers/gpu/drm/amd/amdgpu/soc21.c | 6 ++++--
drivers/gpu/drm/amd/amdgpu/soc24.c | 6 ++++--
3 files changed, 14 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 6b72169be8f8..40c720b32c59 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -1084,11 +1084,14 @@ static void nv_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);
- 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);
}
static const struct amd_ip_funcs nv_common_ip_funcs = {
diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c
index 1c07ebdc0d1f..196286be35b4 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc21.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -975,9 +975,11 @@ static void soc21_common_get_clockgating_state(void *handle, u64 *flags)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
- 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);
}
static const struct amd_ip_funcs soc21_common_ip_funcs = {
diff --git a/drivers/gpu/drm/amd/amdgpu/soc24.c b/drivers/gpu/drm/amd/amdgpu/soc24.c
index 3af10ef4b793..f4278a0fa8f7 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc24.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc24.c
@@ -564,9 +564,11 @@ static void soc24_common_get_clockgating_state(void *handle, u64 *flags)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
- 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);
return;
}
--
2.34.1
