akpm@xxxxxxxxxxxxxxxxxxxx wrote:
> From: Atsushi Nemoto <anemo@xxxxxxxxxxxxx>
>
> I found a problem of handling of modem status of atmel_serial driver.
>
> With the commit 1ecc26 ("atmel_serial: split the interrupt handler"),
> handling of modem status signal was splitted into two parts. The
> atmel_tasklet_func() compares new status with irq_status_prev, but
> irq_status_prev is not correct if signal status was changed while the port
> is closed.
I think this is 2.6.29 material. It fixes a real bug.
Haavard
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