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PCI: fix bridge I/O window bus-to-resource conversion 

In 5bfa14ed9f, I forgot to initialize res2.flags before calling
pcibios_bus_to_resource(), which depends on the resource type to locate the
correct aperture.  This bug won't hurt x86, which currently never has an
offset between bus and CPU addresses, but will affect other architectures.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Bjorn Helgaas 2012-03-16 17:47:59 -06:00 committed by Jesse Barnes
parent 63ab387ca0
commit cf48fb6a2b
1 changed files with 1 additions and 0 deletions
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drivers/pci/probe.c
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@ -367,6 +367,7 @@ static void __devinit pci_read_bridge_io(struct pci_bus *child)
if (base && base <= limit) {
res->flags = (io_base_lo & PCI_IO_RANGE_TYPE_MASK) | IORESOURCE_IO;
res2.flags = res->flags;
region.start = base;
region.end = limit + 0xfff;
pcibios_bus_to_resource(dev, &res2, &region);