int fpga_region_program_fpga()

in fpga-region.c [96:158]

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

int fpga_region_program_fpga(struct fpga_region *region)
{
	struct device *dev = &region->dev;
	struct fpga_image_info *info = region->info;
	int ret;

	region = fpga_region_get(region);
	if (IS_ERR(region)) {
		dev_err(dev, "failed to get FPGA region\n");
		return PTR_ERR(region);
	}

	ret = fpga_mgr_lock(region->mgr);
	if (ret) {
		dev_err(dev, "FPGA manager is busy\n");
		goto err_put_region;
	}

	/*
	 * In some cases, we already have a list of bridges in the
	 * fpga region struct.  Or we don't have any bridges.
	 */
	if (region->get_bridges) {
		ret = region->get_bridges(region);
		if (ret) {
			dev_err(dev, "failed to get fpga region bridges\n");
			goto err_unlock_mgr;
		}
	}

	ret = fpga_bridges_disable(&region->bridge_list);
	if (ret) {
		dev_err(dev, "failed to disable bridges\n");
		goto err_put_br;
	}

	ret = fpga_mgr_load(region->mgr, info);
	if (ret) {
		dev_err(dev, "failed to load FPGA image\n");
		goto err_put_br;
	}

	ret = fpga_bridges_enable(&region->bridge_list);
	if (ret) {
		dev_err(dev, "failed to enable region bridges\n");
		goto err_put_br;
	}

	fpga_mgr_unlock(region->mgr);
	fpga_region_put(region);

	return 0;

err_put_br:
	if (region->get_bridges)
		fpga_bridges_put(&region->bridge_list);
err_unlock_mgr:
	fpga_mgr_unlock(region->mgr);
err_put_region:
	fpga_region_put(region);

	return ret;
}