static void svc_i3c_master_start_xfer_locked()

in master/svc-i3c-master.c [1085:1130]

• 36 lines of code
• 7 McCabe index (conditional complexity)

static void svc_i3c_master_start_xfer_locked(struct svc_i3c_master *master)
{
	struct svc_i3c_xfer *xfer = master->xferqueue.cur;
	int ret, i;

	if (!xfer)
		return;

	ret = pm_runtime_resume_and_get(master->dev);
	if (ret < 0) {
		dev_err(master->dev, "<%s> Cannot get runtime PM.\n", __func__);
		return;
	}

	svc_i3c_master_clear_merrwarn(master);
	svc_i3c_master_flush_fifo(master);

	for (i = 0; i < xfer->ncmds; i++) {
		struct svc_i3c_cmd *cmd = &xfer->cmds[i];

		ret = svc_i3c_master_xfer(master, cmd->rnw, xfer->type,
					  cmd->addr, cmd->in, cmd->out,
					  cmd->len, &cmd->read_len,
					  cmd->continued);
		if (ret)
			break;
	}

	pm_runtime_mark_last_busy(master->dev);
	pm_runtime_put_autosuspend(master->dev);

	xfer->ret = ret;
	complete(&xfer->comp);

	if (ret < 0)
		svc_i3c_master_dequeue_xfer_locked(master, xfer);

	xfer = list_first_entry_or_null(&master->xferqueue.list,
					struct svc_i3c_xfer,
					node);
	if (xfer)
		list_del_init(&xfer->node);

	master->xferqueue.cur = xfer;
	svc_i3c_master_start_xfer_locked(master);
}