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PCI: aardvark: Drop error data fabrication when config read fails
If config pci_ops.read() methods return failure, the PCI_OP_READ() and PCI_USER_READ_CONFIG() wrappers use PCI_SET_ERROR_RESPONSE() to set the data value, so there's no need to set it in the pci_ops.read() methods themselves. Drop the unnecessary data value fabrication when pci_ops.read() fails. Link: https://lore.kernel.org/r/335014f2b44cdf24ed1e37cb7c88f6c5de896cc2.1637243717.git.naveennaidu479@gmail.com Signed-off-by: Naveen Naidu <naveennaidu479@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Pali Rohár <pali@kernel.org>
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1 changed files with 1 additions and 3 deletions
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@ -1026,10 +1026,8 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
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u32 reg;
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int ret;
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if (!advk_pcie_valid_device(pcie, bus, devfn)) {
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*val = 0xffffffff;
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if (!advk_pcie_valid_device(pcie, bus, devfn))
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return PCIBIOS_DEVICE_NOT_FOUND;
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}
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if (pci_is_root_bus(bus))
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return pci_bridge_emul_conf_read(&pcie->bridge, where,
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