> > So it's as I said: _lack_ of such calls can't be an issue.
>
> yep, but doing the free_irq() on suspend can be. and is in some cases.
Your other theory is more interesting:
> > So _which_ device is generating this IRQ??
>
> USB ohci controller having no handler. yenta shares the line, has the
> correct handler installer, sees the interrupt, does not handle it since
> it was not the cardbus bridge generating the interrupt but ohci.
You could try adding
ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
near the end of ohci_pci_suspend().
- Dave
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