static void maple_vblank_handler()

in maple/maple.c [445:488]

• 29 lines of code
• 9 McCabe index (conditional complexity)

static void maple_vblank_handler(struct work_struct *work)
{
	int x, locking;
	struct maple_device *mdev;

	if (!maple_dma_done())
		return;

	__raw_writel(0, MAPLE_ENABLE);

	if (!list_empty(&maple_sentq))
		goto finish;

	/*
	* Set up essential commands - to fetch data and
	* check devices are still present
	*/
	bus_for_each_dev(&maple_bus_type, NULL, NULL,
		setup_maple_commands);

	if (time_after(jiffies, maple_pnp_time)) {
		/*
		* Scan the empty ports - bus is flakey and may have
		* mis-reported emptyness
		*/
		for (x = 0; x < MAPLE_PORTS; x++) {
			if (checked[x] && empty[x]) {
				mdev = baseunits[x];
				if (!mdev)
					break;
				atomic_set(&mdev->busy, 1);
				locking = maple_add_packet(mdev, 0,
					MAPLE_COMMAND_DEVINFO, 0, NULL);
				if (!locking)
					break;
				}
			}

		maple_pnp_time = jiffies + MAPLE_PNP_INTERVAL;
	}

finish:
	maple_send();
}