On Thu, Jun 15, 2006 at 10:30:17PM +0200, Francois Romieu wrote:
> Afaik free_irq() on a shared irq does not touch the hardware and
> irqs are anything but synchronous. If free_irq() is issued before
> the device is idle and its irq are not acked, it's wrong.

Correct. Before calling free_irq(), patch V3 masks interrupts on tulip
and guarantees the tulip will not generate new interrupts before that call.

grant
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