static int ps3av_probe()

in ps3av.c [922:996]

• 60 lines of code
• 11 McCabe index (conditional complexity)

static int ps3av_probe(struct ps3_system_bus_device *dev)
{
	int res;
	int id;

	dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
	dev_dbg(&dev->core, "  timeout=%d\n", timeout);

	if (ps3av) {
		dev_err(&dev->core, "Only one ps3av device is supported\n");
		return -EBUSY;
	}

	ps3av = kzalloc(sizeof(*ps3av), GFP_KERNEL);
	if (!ps3av)
		return -ENOMEM;

	mutex_init(&ps3av->mutex);
	ps3av->ps3av_mode = PS3AV_MODE_AUTO;
	ps3av->dev = dev;

	INIT_WORK(&ps3av->work, ps3avd);
	init_completion(&ps3av->done);
	complete(&ps3av->done);

	switch (ps3_os_area_get_av_multi_out()) {
	case PS3_PARAM_AV_MULTI_OUT_NTSC:
		ps3av->region = PS3AV_REGION_60;
		break;
	case PS3_PARAM_AV_MULTI_OUT_PAL_YCBCR:
	case PS3_PARAM_AV_MULTI_OUT_SECAM:
		ps3av->region = PS3AV_REGION_50;
		break;
	case PS3_PARAM_AV_MULTI_OUT_PAL_RGB:
		ps3av->region = PS3AV_REGION_50 | PS3AV_REGION_RGB;
		break;
	default:
		ps3av->region = PS3AV_REGION_60;
		break;
	}

	/* init avsetting modules */
	res = ps3av_cmd_init();
	if (res < 0)
		printk(KERN_ERR "%s: ps3av_cmd_init failed %d\n", __func__,
		       res);

	ps3av_get_hw_conf(ps3av);

#ifdef CONFIG_FB
	if (fb_mode_option && !strcmp(fb_mode_option, "safe"))
		safe_mode = 1;
#endif /* CONFIG_FB */
	id = ps3av_auto_videomode(&ps3av->av_hw_conf);
	if (id < 0) {
		printk(KERN_ERR "%s: invalid id :%d\n", __func__, id);
		res = -EINVAL;
		goto fail;
	}

	safe_mode = 0;

	mutex_lock(&ps3av->mutex);
	ps3av->ps3av_mode = id;
	mutex_unlock(&ps3av->mutex);

	dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);

	return 0;

fail:
	kfree(ps3av);
	ps3av = NULL;
	return res;
}