Commit eb4900aa authored by Rex Zhu's avatar Rex Zhu Committed by Alex Deucher
Browse files

drm/amdgpu: Fix kernel NULL pointer dereference in dpm functions 



caused by
'commit 83e3c4615872 ("drm/amdgpu: Remove wrapper layer of smu ip functions")'

BUG: unable to handle kernel NULL pointer dereference at 00000000000005d8
[  313.241459] IP: ci_dpm_read_sensor+0x37/0xf0 [amdgpu]

Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarRex Zhu <Rex.Zhu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 81ce8bea

drivers/gpu/drm/amd/amdgpu/ci_dpm.c

+1 −0
Original line number Diff line number Diff line
@@ -6244,6 +6244,7 @@ static int ci_dpm_early_init(void *handle) 
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;



	adev->powerplay.pp_funcs = &ci_dpm_funcs;

	adev->powerplay.pp_handle = adev;

	ci_dpm_set_irq_funcs(adev);



	return 0;

drivers/gpu/drm/amd/amdgpu/kv_dpm.c

+1 −0
Original line number Diff line number Diff line
@@ -2963,6 +2963,7 @@ static int kv_dpm_early_init(void *handle) 
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;



	adev->powerplay.pp_funcs = &kv_dpm_funcs;

	adev->powerplay.pp_handle = adev;

	kv_dpm_set_irq_funcs(adev);



	return 0;

drivers/gpu/drm/amd/amdgpu/si_dpm.c

+1 −0
Original line number Diff line number Diff line
@@ -7917,6 +7917,7 @@ static int si_dpm_early_init(void *handle) 
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;



	adev->powerplay.pp_funcs = &si_dpm_funcs;

	adev->powerplay.pp_handle = adev;

	si_dpm_set_irq_funcs(adev);

	return 0;

}