From mboxrd@z Thu Jan 1 00:00:00 1970 From: thomas.petazzoni@bootlin.com (Thomas Petazzoni) Date: Fri, 3 Aug 2018 16:38:44 +0200 Subject: [PATCH v2 2/6] PCI: mvebu: fix I/O space end address calculation In-Reply-To: <20180803143848.21551-1-thomas.petazzoni@bootlin.com> References: <20180803143848.21551-1-thomas.petazzoni@bootlin.com> Message-ID: <20180803143848.21551-3-thomas.petazzoni@bootlin.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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