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-rw-r--r--drivers/gpu/drm/amd/amdgpu/atombios_encoders.c7
-rw-r--r--drivers/gpu/drm/amd/include/atombios.h2
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
index 6be9ac2b9c5b..18ae9433e463 100644
--- a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
+++ b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
@@ -2081,8 +2081,11 @@ amdgpu_atombios_encoder_get_lcd_info(struct amdgpu_encoder *encoder)
}
}
record += fake_edid_record->ucFakeEDIDLength ?
- fake_edid_record->ucFakeEDIDLength + 2 :
- sizeof(ATOM_FAKE_EDID_PATCH_RECORD);
+ struct_size(fake_edid_record,
+ ucFakeEDIDString,
+ fake_edid_record->ucFakeEDIDLength) :
+ /* empty fake edid record must be 3 bytes long */
+ sizeof(ATOM_FAKE_EDID_PATCH_RECORD) + 1;
break;
case LCD_PANEL_RESOLUTION_RECORD_TYPE:
panel_res_record = (ATOM_PANEL_RESOLUTION_PATCH_RECORD *)record;
diff --git a/drivers/gpu/drm/amd/include/atombios.h b/drivers/gpu/drm/amd/include/atombios.h
index 15943bc21bc5..b5b1d073f8e2 100644
--- a/drivers/gpu/drm/amd/include/atombios.h
+++ b/drivers/gpu/drm/amd/include/atombios.h
@@ -4107,7 +4107,7 @@ typedef struct _ATOM_FAKE_EDID_PATCH_RECORD
{
UCHAR ucRecordType;
UCHAR ucFakeEDIDLength; // = 128 means EDID length is 128 bytes, otherwise the EDID length = ucFakeEDIDLength*128
- UCHAR ucFakeEDIDString[1]; // This actually has ucFakeEdidLength elements.
+ UCHAR ucFakeEDIDString[]; // This actually has ucFakeEdidLength elements.
} ATOM_FAKE_EDID_PATCH_RECORD;
typedef struct _ATOM_PANEL_RESOLUTION_PATCH_RECORD