Copier's config_length shall always be at least one even if there is no configuration payload to carry. While the firmware treats config_length=0 or 1 in the same manner, the driver shall initialize the module properly.
Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com --- sound/soc/intel/avs/path.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/sound/soc/intel/avs/path.c b/sound/soc/intel/avs/path.c index 5944865a1193..9bd03a44fcb9 100644 --- a/sound/soc/intel/avs/path.c +++ b/sound/soc/intel/avs/path.c @@ -148,11 +148,12 @@ static int avs_copier_create(struct avs_dev *adev, struct avs_path_module *mod) struct avs_copier_cfg *cfg; struct nhlt_specific_cfg *ep_blob; union avs_connector_node_id node_id = {0}; - size_t cfg_size, data_size = 0; + size_t cfg_size, data_size; void *data = NULL; u32 dma_type; int ret;
+ data_size = sizeof(cfg->gtw_cfg.config); dma_type = t->cfg_ext->copier.dma_type; node_id.dma_type = dma_type;
@@ -233,10 +234,7 @@ static int avs_copier_create(struct avs_dev *adev, struct avs_path_module *mod) break; }
- cfg_size = sizeof(*cfg) + data_size; - /* Every config-BLOB contains gateway attributes. */ - if (data_size) - cfg_size -= sizeof(cfg->gtw_cfg.config.attrs); + cfg_size = offsetof(struct avs_copier_cfg, gtw_cfg.config) + data_size; if (cfg_size > AVS_MAILBOX_SIZE) return -EINVAL;