Some LARGE_CONFIG_GETs are never expected to return payload of size 0. Check for such situation and collapse if met. Signed-off-by: Cezary Rojewski <cezary.rojewski@xxxxxxxxx> --- sound/soc/intel/avs/messages.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sound/soc/intel/avs/messages.c b/sound/soc/intel/avs/messages.c index 3559fb496e0b..9cf621eaec5a 100644 --- a/sound/soc/intel/avs/messages.c +++ b/sound/soc/intel/avs/messages.c @@ -474,6 +474,9 @@ int avs_ipc_get_fw_config(struct avs_dev *adev, struct avs_fw_cfg *cfg) &payload, &payload_size); if (ret) return ret; + /* Non-zero payload expected for FIRMWARE_CONFIG. */ + if (!payload_size) + return -EREMOTEIO; while (offset < payload_size) { tlv = (struct avs_tlv *)(payload + offset); @@ -587,6 +590,9 @@ int avs_ipc_get_hw_config(struct avs_dev *adev, struct avs_hw_cfg *cfg) &payload, &payload_size); if (ret) return ret; + /* Non-zero payload expected for HARDWARE_CONFIG. */ + if (!payload_size) + return -EREMOTEIO; while (offset < payload_size) { tlv = (struct avs_tlv *)(payload + offset); @@ -670,6 +676,9 @@ int avs_ipc_get_modules_info(struct avs_dev *adev, struct avs_mods_info **info) &payload, &payload_size); if (ret) return ret; + /* Non-zero payload expected for MODULES_INFO. */ + if (!payload_size) + return -EREMOTEIO; *info = (struct avs_mods_info *)payload; return 0; -- 2.25.1