diff options
| author | jhb <jhb@FreeBSD.org> | 2005-12-05 19:50:00 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2005-12-05 19:50:00 +0000 |
| commit | d43d34a8bd7030a93475f827ba37de574120a9bc (patch) | |
| tree | 95105d111d1f59d5b4700f013a6078bf65b3b233 /sys/dev/acpica | |
| parent | 257abc1fc19ce02c432c0baa7af260a50a02dfe3 (diff) | |
| download | FreeBSD-src-d43d34a8bd7030a93475f827ba37de574120a9bc.zip FreeBSD-src-d43d34a8bd7030a93475f827ba37de574120a9bc.tar.gz | |
If pci_link has been disabled via the acpi_disable tunable, then bail
immediately from acpi_pci_link_route_interrupt() since we aren't going
to have a valid pci_link device to talk to try to route interrupts. This
fixes a page fault if you disable just pci_link. Note that trying to use
ACPI without pci_link is probably not advised however.
MFC after: 1 week
Tested by: Eugene Grosbein eugen at kuzbass dot ru
Diffstat (limited to 'sys/dev/acpica')
| -rw-r--r-- | sys/dev/acpica/acpi_pci_link.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/dev/acpica/acpi_pci_link.c b/sys/dev/acpica/acpi_pci_link.c index 5b73edb..4b7415b 100644 --- a/sys/dev/acpica/acpi_pci_link.c +++ b/sys/dev/acpica/acpi_pci_link.c @@ -1011,6 +1011,9 @@ acpi_pci_link_route_interrupt(device_t dev, int index) { struct link *link; + if (acpi_disabled("pci_link")) + return (PCI_INVALID_IRQ); + ACPI_SERIAL_BEGIN(pci_link); link = acpi_pci_link_lookup(dev, index); if (link == NULL) |
