Am 31.12.20 um 09:47 schrieb Jiawei Gu:
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.
Mhm, I'm wondering if we shouldn't change the init sequence then. The
asic_funcs is something pretty fundamental.
Signed-off-by: Jiawei Gu <Jiawei.Gu@xxxxxxx>
Acked-by: Christian König <christian.koenig@xxxxxxx> for now.
---
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
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