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drm/amdkfd: Avoid null pointer in SMI event

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Power Management IP is initialized/enabled before KFD init. When a
thermal throttling happens before kfd_smi_init is done, calling the KFD
SMI update function causes a stack dump by referring a NULL pointer (
smi_clients list). Check if kfd_init is completed before calling the
function.

Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Reviewed-by: Mukul Joshi <mukul.joshi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Amber Lin 2021-03-30 13:05:33 -04:00 committed by Alex Deucher
parent 92b15eb07a
commit 158fc08d17
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdkfd/kfd_device.c
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@ -1322,7 +1322,7 @@ void kfd_dec_compute_active(struct kfd_dev *kfd)
void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint32_t throttle_bitmask)
{
if (kfd)
if (kfd && kfd->init_complete)
kfd_smi_event_update_thermal_throttling(kfd, throttle_bitmask);
}