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

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[ 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: 11be65472a ("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>
This commit is contained in:
Thomas Petazzoni 2018-08-03 16:38:44 +02:00 • committed by Greg Kroah-Hartman
parent 242343ebf6
commit d07bbe50d1
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/host/pci-mvebu.c
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@ -1235,7 +1235,7 @@ 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;