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    Subject[PATCH 4.4 25/60] PCI: mvebu: Fix I/O space end address calculation
    Date
    4.4-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

    [ Upstream commit dfd0309fd7b30a5baffaf47b2fccb88b46d64d69 ]

    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>
    Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/pci/host/pci-mvebu.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/pci/host/pci-mvebu.c
    +++ b/drivers/pci/host/pci-mvebu.c
    @@ -1235,7 +1235,7 @@ static int mvebu_pcie_probe(struct platf
    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;


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