PCI: mvebu: Fix I/O space end address calculation

tpetazzoni · Lorenzo Pieralisi · commit dfd0309fd7b3 · 2018-08-08T15:50:04.000+01:00
pcie->realio.end should be the address of last byte of the area, therefore using resource_size() of another resource is not correct, we must substract 1 to get the address of the last byte. Fixes: 11be654 ("PCI: mvebu: Adapt to the new device tree layout") Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c
@@ -1219,7 +1219,7 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
 		pcie->realio.start = PCIBIOS_MIN_IO;
 		pcie->realio.end = min_t(resource_size_t,
 					 IO_SPACE_LIMIT,
-					 resource_size(&pcie->io));
+					 resource_size(&pcie->io) - 1);
 	} else
 		pcie->realio = pcie->io;
 
