diff options
Diffstat (limited to 'arch/x86/pci')
| -rw-r--r-- | arch/x86/pci/irq.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index e4200e5e775e..748cfe8ab322 100644 --- a/arch/x86/pci/irq.c +++ b/arch/x86/pci/irq.c @@ -26,6 +26,7 @@ static int acer_tm360_irqrouting; static struct irq_routing_table *pirq_table; static int pirq_enable_irq(struct pci_dev *dev); +static void pirq_disable_irq(struct pci_dev *dev); /* * Never use: 0, 1, 2 (timer, keyboard, and cascade) @@ -53,7 +54,7 @@ struct irq_router_handler { }; int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq; -void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL; +void (*pcibios_disable_irq)(struct pci_dev *dev) = pirq_disable_irq; /* * Check passed address for the PCI IRQ Routing Table signature @@ -1186,7 +1187,7 @@ void pcibios_penalize_isa_irq(int irq, int active) static int pirq_enable_irq(struct pci_dev *dev) { - u8 pin; + u8 pin = 0; pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); if (pin && !pcibios_lookup_irq(dev, 1)) { @@ -1252,3 +1253,11 @@ static int pirq_enable_irq(struct pci_dev *dev) } return 0; } + +static void pirq_disable_irq(struct pci_dev *dev) +{ + if (io_apic_assign_pci_irqs && dev->irq) { + mp_unmap_irq(dev->irq); + dev->irq = 0; + } +} |