On Thursday 06 December 2007, Nicolas Ferre wrote:
> Correct hanging while disconnecting the USB device
> cable. Prevent a race between vbus and UDP interrupts.
> This bug was tracked on at91sam9260ek boards.
>
> Signed-off-by: Nicolas Ferre <[email protected]>
> ---
>
> A usb resume interrupt was firing after the vbus
> interrupt : the IP was then already stoped and not able
> to deal with it (no more clock). A simple interrupt disabling
> is ok as the "end of bus reset" irq is non maskable and ok
> to resume the USB device IP.
Good, thanks for finding this. The bug was reported
recently, and obviously can't be reproduced except on
boards which *have* a VBUS interrupt!
I've signed off on this and suggested Greg merge it
before the 2.6.24-final freeze.
- Dave
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