[PATCH] PCI: designware: Fix IO resource end address calculation

[Minghuan Lian]

End address should be equal to start_addr + size - 1.
The patch fixes PCI IO resource end address calculation.

Signed-off-by: Minghuan Lian <Minghuan.Lian at freescale.com>
---
 drivers/pci/host/pcie-designware.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 0f3cb2a..c19184f7 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -459,7 +459,7 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 			pp->io.end = min_t(resource_size_t,
 					   IO_SPACE_LIMIT,
 					   range.pci_addr + range.size
-					   + global_io_offset);
+					   + global_io_offset - 1);
 			pp->io_size = resource_size(&pp->io);
 			pp->io_bus_addr = range.pci_addr;
 			pp->io_base = range.cpu_addr;
-- 
1.9.1