commit cf48fb6a2bf2e59990e1438d0dedc706df911996
author Bjorn Helgaas <bhelgaas@google.com> Fri Mar 16 17:47:59 2012 -0600
committer Jesse Barnes <jbarnes@virtuousgeek.org> Tue Mar 20 10:41:27 2012 -0700
tree ece7583684a8a3e7a97d471db9a6984ababf100b
parent 63ab387ca0d1576edef35ef68e4b8ea5e0757b7a

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

In 5bfa14ed9f3c, 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>

drivers/pci/probe.c

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 944e05a..5e1ca3c 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -367,6 +367,7 @@
 
 	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);