Commit 3469e901 authored by Andy Grover's avatar Andy Grover

Add a warning

Fix a typo
Use the default bios-given IRQ if ACPI can't find one at all (Dominik B)
parent 336ee08b
/*
* pci_irq.c - ACPI PCI Interrupt Routing ($Revision: 7 $)
* pci_irq.c - ACPI PCI Interrupt Routing ($Revision: 10 $)
*
* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
......@@ -250,8 +250,13 @@ acpi_pci_irq_lookup (
return_VALUE(0);
}
if (!entry->irq && entry->link.handle)
if (!entry->irq && entry->link.handle) {
entry->irq = acpi_pci_link_get_irq(entry->link.handle, entry->link.index);
if (!entry->irq) {
ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid IRQ link routing entry\n"));
return_VALUE(0);
}
}
else if (!entry->irq) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid static routing entry (IRQ 0)\n"));
return_VALUE(0);
......@@ -323,7 +328,7 @@ acpi_pci_irq_enable (
/*
* First we check the PCI IRQ routing table (PRT) for an IRQ. PRT
* values override any BIOS-assinged IRQs set during boot.
* values override any BIOS-assigned IRQs set during boot.
*/
irq = acpi_pci_irq_lookup(0, dev->bus->number, PCI_SLOT(dev->devfn), pin);
......@@ -334,13 +339,18 @@ acpi_pci_irq_enable (
if (!irq)
irq = acpi_pci_irq_derive(dev, pin);
if (irq)
dev->irq = irq;
if (!dev->irq) {
printk(KERN_WARNING PREFIX "No IRQ known for interrupt pin %c of device %s\n", ('A' + pin), dev->slot_name);
return_VALUE(0);
}
/*
* No IRQ known to the ACPI subsystem - maybe the BIOS /
* driver reported one, then use it. Exit in any case.
*/
if (!irq) {
printk(KERN_WARNING PREFIX "No IRQ known for interrupt pin %c of device %s", ('A' + pin), dev->slot_name);
if (dev->irq)
printk(" - using IRQ %d\n", dev->irq);
return_VALUE(dev->irq);
}
dev->irq = irq;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device %s using IRQ %d\n", dev->slot_name, dev->irq));
......
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