virtio-mmio: Fix irq parsing in command line parameter

	int err;

	struct resource resources[2] = {};

	char *str;

	long long int base;

	long long int base, size;

	unsigned int irq;

	int processed, consumed = 0;

	struct platform_device *pdev;

	resources[0].flags = IORESOURCE_MEM;

	resources[1].flags = IORESOURCE_IRQ;

	resources[0].end = memparse(device, &str) - 1;

	/* Consume "size" part of the command line parameter */

	size = memparse(device, &str);

	/* Get "@<base>:<irq>[:<id>]" chunks */

	processed = sscanf(str, "@%lli:%u%n:%d%n",

			&base, &resources[1].start, &consumed,

			&base, &irq, &consumed,

			&vm_cmdline_id, &consumed);

	if (processed < 2 || processed > 3 || str[consumed])

	/*

	 * sscanf() must processes at least 2 chunks; also there

	 * must be no extra characters after the last chunk, so

	 * str[consumed] must be '\0'

	 */

	if (processed < 2 || str[consumed])

		return -EINVAL;

	resources[0].flags = IORESOURCE_MEM;

	resources[0].start = base;

	resources[0].end += base;

	resources[1].end = resources[1].start;

	resources[0].end = base + size - 1;

	resources[1].flags = IORESOURCE_IRQ;

	resources[1].start = resources[1].end = irq;

	if (!vm_cmdline_parent_registered) {

		err = device_register(&vm_cmdline_parent);