pcmdevice_block_data
struct pcmdevice_block_data **bk_da;
bk_da = cfg_info->blk_data = kzalloc_objs(struct pcmdevice_block_data *,
bk_da[i] = kzalloc_obj(struct pcmdevice_block_data);
struct pcmdevice_block_data **blk_data;
struct pcmdevice_block_data **blk_data;