Asic funcs pointer needs being checked whether is NULL. Because when check_atom_bios() fails in req_init_data handshake, asic funcs pointer is not initialized yet.
Signed-off-by: Jiawei Gu <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c index 6333cada1e09..efdf639f6593 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c @@ -155,7 +155,7 @@ static bool amdgpu_read_bios_from_rom(struct amdgpu_device *adev) u8 header[AMD_VBIOS_SIGNATURE_END+1] = {0}; int len; - if (!adev->asic_funcs->read_bios_from_rom) + if (!adev->asic_funcs || !adev->asic_funcs->read_bios_from_rom) return false; /* validate VBIOS signature */ @@ -348,7 +348,8 @@ static bool amdgpu_read_disabled_bios(struct amdgpu_device *adev) if (adev->flags & AMD_IS_APU) return igp_read_bios_from_vram(adev); else - return amdgpu_asic_read_disabled_bios(adev); + return (!adev->asic_funcs || !adev->asic_funcs->read_disabled_bios) ? + false : amdgpu_asic_read_disabled_bios(adev); } #ifdef CONFIG_ACPI -- 2.17.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
