static struct acpi_table_desc initial_tables[ACPI_MAX_TABLES] __initdata;
-static int acpi_apic_instance __initdata = 2;
+static int acpi_apic_instance __initdata;
void acpi_table_print_madt_entry(struct acpi_subtable_header *header)
{
static int __init acpi_parse_apic_instance(char *str)
{
+ if (!str)
+ return -EINVAL;
acpi_apic_instance = simple_strtoul(str, NULL, 0);