x86/PCI: MMCONFIG: fix region end calculation

Commit Message

Bjorn Helgaas Oct. 4, 2010, 4:16 p.m. UTC

None

Patch

diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index a918553..5cfe94c 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -85,7 +85,7 @@  static __init struct pci_mmcfg_region *pci_mmconfig_add(int segment, int start,
 	num_buses = end - start + 1;
 	res = &new->res;
 	res->start = addr + PCI_MMCFG_BUS_OFFSET(start);
-	res->end = addr + PCI_MMCFG_BUS_OFFSET(num_buses) - 1;
+	res->end = addr + PCI_MMCFG_BUS_OFFSET(end + 1) - 1;
 	res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
 	snprintf(new->name, PCI_MMCFG_RESOURCE_NAME_LEN,
 		 "PCI MMCONFIG %04x [bus %02x-%02x]", segment, start, end);