PCI: rcar: Verify that mem_res is 64K-aligned
The lower 16 bits of the address, which is managed by mem_res, need to be zero. Check the address to verify this. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Simon Horman <horms+renesas@verge.net.au>
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@ -301,6 +301,9 @@ static int rcar_pci_probe(struct platform_device *pdev)
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if (!mem_res || !mem_res->start)
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return -ENODEV;
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if (mem_res->start & 0xFFFF)
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return -EINVAL;
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priv = devm_kzalloc(&pdev->dev,
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sizeof(struct rcar_pci_priv), GFP_KERNEL);
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if (!priv)
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