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| author | Yinghai Lu <yinghai@kernel.org> | 2013-03-23 19:16:37 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-03-24 01:00:38 +0100 |
| commit | f084dbb939070281be7c882db63a4a428c51fcf4 (patch) | |
| tree | bfda012c8613e30ff2bd6e41255af7d3533b497e /drivers/acpi/pci_link.c | |
| parent | eccc534378e74030b31cfe10f1188df06f7f680a (diff) | |
| download | blackbird-op-linux-f084dbb939070281be7c882db63a4a428c51fcf4.tar.gz blackbird-op-linux-f084dbb939070281be7c882db63a4a428c51fcf4.zip | |
ACPI: Set length even for TYPE_END_TAG acpi resource
Found with a network device in QEMU/KVM guest not working anymore.
Bisected to commit c13085e5
ACPICA: Resource Mgr: Prevent infinite loops in resource walks
That commit will check acpi_resource length strictly which causes
acpi_set_current_resources to return failure and IRQ for PCI
devices is not set properly.
Set length for all those TYPE_END_TAG acpi_resources.
[rjw: Changelog]
Bisected-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/pci_link.c')
| -rw-r--r-- | drivers/acpi/pci_link.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index ab764ed34a50..2652a614deeb 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -354,6 +354,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq) } resource->end.type = ACPI_RESOURCE_TYPE_END_TAG; + resource->end.length = sizeof(struct acpi_resource); /* Attempt to set the resource */ status = acpi_set_current_resources(link->device->handle, &buffer); |
