[PATCH v2 2/6] PCI: mvebu: fix I/O space end address calculation
From: thomas.petazzoni@bootlin.com (Thomas Petazzoni)
Date: 2018-08-03 14:38:44
Also in:
linux-pci
Subsystem:
pci driver for mvebu (marvell armada 370 and armada xp soc support), pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers:
Thomas Petazzoni, Pali Rohár, Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds
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: 11be65472a427 ("PCI: mvebu: Adapt to the new device tree layout")
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
---
This bug never had any visible impact, so there is no need to push to
stable.
---
drivers/pci/controller/pci-mvebu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c
index 38fa2d08527d..a195592723c2 100644
--- 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;
--
2.14.4