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Commit 44f8e1a2 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

If ACPI doesn't find an irq listed, don't accept 0 as a valid PCI irq. 

That zero just means that nothing else found any irq information either.
parent 4a89a04f

drivers/acpi/pci_irq.c

+1 −1
Original line number Diff line number Diff line
@@ -433,7 +433,7 @@ acpi_pci_irq_enable ( 
		printk(KERN_WARNING PREFIX "PCI Interrupt %s[%c]: no GSI",

			pci_name(dev), ('A' + pin));

		/* Interrupt Line values above 0xF are forbidden */

		if (dev->irq >= 0 && (dev->irq <= 0xF)) {

		if (dev->irq > 0 && (dev->irq <= 0xF)) {

			printk(" - using IRQ %d\n", dev->irq);

			acpi_register_gsi(dev->irq, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);

			return_VALUE(0);