[ACPI] fix "nolapic" flag in ACPI mode

Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 033066176b3e..d0980c79a5d2 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -215,7 +215,7 @@ static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size)
 {
         struct acpi_table_madt *madt = NULL;
 
-        if (!phys_addr || !size)
+        if (!phys_addr || !size || !cpu_has_apic)
                 return -EINVAL;
 
         madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size);
@@ -751,6 +751,9 @@ static int __init acpi_parse_madt_ioapic_entries(void)
                 return -ENODEV;
         }
 
+        if (!cpu_has_apic) 
+                return -ENODEV;
+
         /*
          * if "noapic" boot option, don't look for IO-APICs
          */