diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/io_apic_32.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c index 09cddb57bec4..bfd9fc5d1556 100644 --- a/arch/x86/kernel/io_apic_32.c +++ b/arch/x86/kernel/io_apic_32.c @@ -2314,6 +2314,9 @@ void __init setup_IO_APIC(void) for (i = first_system_vector; i < NR_VECTORS; i++) set_bit(i, used_vectors); + /* Mark FIRST_DEVICE_VECTOR which is assigned to IRQ0 as used. */ + set_bit(FIRST_DEVICE_VECTOR, used_vectors); + enable_IO_APIC(); io_apic_irqs = ~PIC_IRQS; |