[01/11] If ACPI doesn't find an irq listed, don't accept 0 as a valid PCI irq.

[Greg KH]

-stable review patch.  If anyone has any objections, please let us know.

------------------

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.

Fixes http://bugme.osdl.org/show_bug.cgi?id=4824

Signed-off-by: Chris Wright <chrisw@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 drivers/acpi/pci_irq.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.12.2.orig/drivers/acpi/pci_irq.c	2005-07-13 10:53:01.000000000 -0700
+++ linux-2.6.12.2/drivers/acpi/pci_irq.c	2005-07-13 10:56:30.000000000 -0700
@@ -433,7 +433,7 @@
 		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);
-
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