diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c index 0a1a851741c5..a6e403227872 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -96,25 +96,27 @@ dmub_get_fw_meta_info(const struct dmub_srv_region_params *params) const union dmub_fw_meta *meta; const uint8_t *blob = NULL; uint32_t blob_size = 0; + uint32_t meta_offset = 0; if (params->fw_bss_data) { /* Legacy metadata region. */ blob = params->fw_bss_data; blob_size = params->bss_data_size; + meta_offset = DMUB_FW_META_OFFSET; } else if (params->fw_inst_const) { /* Combined metadata region. */ blob = params->fw_inst_const; blob_size = params->inst_const_size; + meta_offset = 0; } if (!blob || !blob_size) return NULL; - if (blob_size < sizeof(union dmub_fw_meta) + DMUB_FW_META_OFFSET) + if (blob_size < sizeof(union dmub_fw_meta) + meta_offset) return NULL; - meta = (const union dmub_fw_meta *)(blob + blob_size - - DMUB_FW_META_OFFSET - + meta = (const union dmub_fw_meta *)(blob + blob_size - meta_offset - sizeof(union dmub_fw_meta)); if (meta->info.magic_value != DMUB_FW_META_MAGIC) |