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    SubjectRe: mcs7830 usb net: "scheduling while atomic" danger?

    On Mon, 18 Jan 2010, Julia Lawall wrote:
    > On Mon, 18 Jan 2010, Andreas Mohr wrote:
    > The semantic match shown below finds 55 matches. All but two involve
    > mutex_lock. Those are in the file

    As I said before the mutex_lock()/msleep() ones are fine.

    > /var/linuxes/linux-next/drivers/usb/host/ehci-hub.c
    > in the functions ehci_bus_suspend and ehci_hub_control.

    The msleep in ehci_hub_control() which happens with ehci->lock held
    and irqs disabled is definitely buggy.

    I can't see anything wrong wth the msleep in ehci_bus_suspend() as it
    is _before_ the spin_lock_irq(&ehci->lock) region.



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