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bus: mvebu-mbus: Fix optional pcie-mem/io-aperture properties
If the property was not specified then the returned resource had a
resource_size(..) == 1, rather than 0. The PCI-E driver checks for 0 so it
blindly continues on with a corrupted resource.
The regression was introduced into v3.12 by:
11be654
PCI: mvebu: Adapt to the new device tree layout
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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@ -865,11 +865,13 @@ static void __init mvebu_mbus_get_pcie_resources(struct device_node *np,
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int ret;
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/*
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* These are optional, so we clear them and they'll
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* be zero if they are missing from the DT.
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* These are optional, so we make sure that resource_size(x) will
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* return 0.
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*/
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memset(mem, 0, sizeof(struct resource));
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mem->end = -1;
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memset(io, 0, sizeof(struct resource));
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io->end = -1;
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ret = of_property_read_u32_array(np, "pcie-mem-aperture", reg, ARRAY_SIZE(reg));
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if (!ret) {
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