2024-05-27 16:19:34

by Andy Shevchenko

[permalink] [raw]
Subject: Re: [PATCH 2/4] x86/pci/intel_mid_pci: Fix PCIBIOS_* return code handling

On Mon, May 27, 2024 at 03:55:36PM +0300, Ilpo J?rvinen wrote:
> intel_mid_pci_irq_enable() uses pci_read_config_byte() that returns
> PCIBIOS_* codes. The error handling, however, assumes the codes are
> normal errnos because it checks for < 0.
>
> intel_mid_pci_irq_enable() also returns the PCIBIOS_* code back to the
> caller but the function is used as the (*pcibios_enable_irq) function
> which should return normal errnos.
>
> Convert the error check to plain non-zero check which works for
> PCIBIOS_* return codes and convert the PCIBIOS_* return code using
> pcibios_err_to_errno() into normal errno before returning it.

Reviewed-by: Andy Shevchenko <[email protected]>

--
With Best Regards,
Andy Shevchenko