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-rw-r--r--arch/ia64/pci/pci.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 2a1487758490..d929858cfb3e 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -373,6 +373,25 @@ void pcibios_bus_to_resource(struct pci_dev *dev,
res->end = region->end + offset;
}
+static int __devinit is_valid_resource(struct pci_dev *dev, int idx)
+{
+ unsigned int i, type_mask = IORESOURCE_IO | IORESOURCE_MEM;
+ struct resource *devr = &dev->resource[idx];
+
+ if (!dev->bus)
+ return 0;
+ for (i=0; i<PCI_BUS_NUM_RESOURCES; i++) {
+ struct resource *busr = dev->bus->resource[i];
+
+ if (!busr || ((busr->flags ^ devr->flags) & type_mask))
+ continue;
+ if ((devr->start) && (devr->start >= busr->start) &&
+ (devr->end <= busr->end))
+ return 1;
+ }
+ return 0;
+}
+
static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
{
struct pci_bus_region region;
@@ -386,7 +405,8 @@ static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
region.start = dev->resource[i].start;
region.end = dev->resource[i].end;
pcibios_bus_to_resource(dev, &dev->resource[i], &region);
- pci_claim_resource(dev, i);
+ if ((is_valid_resource(dev, i)))
+ pci_claim_resource(dev, i);
}
}