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    SubjectRe: [linux-usb-devel] Re: 2.6.13-mm2
    > > 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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