static int qcom_glink_rx_defer()

in qcom_glink_native.c [784:811]

• 20 lines of code
• 3 McCabe index (conditional complexity)

static int qcom_glink_rx_defer(struct qcom_glink *glink, size_t extra)
{
	struct glink_defer_cmd *dcmd;

	extra = ALIGN(extra, 8);

	if (qcom_glink_rx_avail(glink) < sizeof(struct glink_msg) + extra) {
		dev_dbg(glink->dev, "Insufficient data in rx fifo");
		return -ENXIO;
	}

	dcmd = kzalloc(sizeof(*dcmd) + extra, GFP_ATOMIC);
	if (!dcmd)
		return -ENOMEM;

	INIT_LIST_HEAD(&dcmd->node);

	qcom_glink_rx_peak(glink, &dcmd->msg, 0, sizeof(dcmd->msg) + extra);

	spin_lock(&glink->rx_lock);
	list_add_tail(&dcmd->node, &glink->rx_queue);
	spin_unlock(&glink->rx_lock);

	schedule_work(&glink->rx_work);
	qcom_glink_rx_advance(glink, sizeof(dcmd->msg) + extra);

	return 0;
}