redonkable/alistair23-linux
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Pull bugzilla-5637 into release branch

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This commit is contained in:
Len Brown 2008-01-11 12:20:18 -05:00
parent 88fb61e4ba 96c2a8766b
commit e63501d51d
1 changed files with 9 additions and 0 deletions
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9
drivers/acpi/pci_irq.c
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@ -429,6 +429,15 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
&polarity, &link,
acpi_pci_allocate_irq);
if (irq < 0) {
/*
* IDE legacy mode controller IRQs are magic. Why do compat
* extensions always make such a nasty mess.
*/
if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE &&
(dev->class & 0x05) == 0)
return 0;
}
/*
* No IRQ known to the ACPI subsystem - maybe the BIOS /
* driver reported one, then use it. Exit in any case.