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-rw-r--r--arch/x86/kernel/io_apic_64.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index e7f1476ed53..9637675ea55 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -516,7 +516,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin)
apic_printk(APIC_DEBUG, "querying PCI -> IRQ mapping bus:%d, slot:%d, pin:%d.\n",
bus, slot, pin);
- if (mp_bus_id_to_pci_bus[bus] == -1) {
+ if (test_bit(bus, mp_bus_not_pci)) {
apic_printk(APIC_VERBOSE, "PCI BIOS passed nonexistent PCI bus %d!\n", bus);
return -1;
}