DCP_CHAN_CRYPTO
sdcp->thread[DCP_CHAN_CRYPTO] = kthread_run(dcp_chan_thread_aes,
if (IS_ERR(sdcp->thread[DCP_CHAN_CRYPTO])) {
ret = PTR_ERR(sdcp->thread[DCP_CHAN_CRYPTO]);
kthread_stop(sdcp->thread[DCP_CHAN_CRYPTO]);
kthread_stop(sdcp->thread[DCP_CHAN_CRYPTO]);
const int chan = DCP_CHAN_CRYPTO;
actx->chan = DCP_CHAN_CRYPTO;