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| author | Bolarinwa Olayemi Saheed <refactormyself@gmail.com> | 2020-06-15 09:32:25 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-06-26 13:50:41 -0500 |
| commit | b91535812d663acc47952d05386c8a126eae8080 (patch) | |
| tree | eb430110d95108302d63c5a6ff23bf871eec1383 /Documentation/PCI/pci.rst | |
| parent | d20df83b66ccb9cc6b1ac448d4013647a0fe4952 (diff) | |
| download | linux-b91535812d663acc47952d05386c8a126eae8080.tar.bz2 | |
PCI: Align PCIe capability and PCI accessor return values
The PCI config accessors (pci_read_config_word(), et al) return
PCIBIOS_SUCCESSFUL (zero) or positive error values like
PCIBIOS_FUNC_NOT_SUPPORTED.
The PCIe capability accessors similarly return PCIBIOS errors, but in
addition, they can return -EINVAL. This makes it harder than it should be
to check for errors.
Return PCIBIOS_BAD_REGISTER_NUMBER instead of -EINVAL in all PCIe
capability accessors.
Suggested-by: Bjorn Helgaas <bjorn@helgaas.com>
Link: https://lore.kernel.org/r/20200615073225.24061-9-refactormyself@gmail.com
Signed-off-by: Bolarinwa Olayemi Saheed <refactormyself@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'Documentation/PCI/pci.rst')
0 files changed, 0 insertions, 0 deletions