Re: [PATCH] Fix tosakbd suspend

From: Dmitry Torokhov
Date: Mon Mar 31 2008 - 23:49:22 EST


Hi Dmitry,

On Tue, Apr 01, 2008 at 01:38:01AM +0400, Dmitry Baryshkov wrote:
> Signed-off-by: Dmitry Baryshkov <dbaryshkov@xxxxxxxxx>
> ---
> drivers/input/keyboard/tosakbd.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/input/keyboard/tosakbd.c b/drivers/input/keyboard/tosakbd.c
> index 3884d1e..306cbe8 100644
> --- a/drivers/input/keyboard/tosakbd.c
> +++ b/drivers/input/keyboard/tosakbd.c
> @@ -210,6 +210,9 @@ static int tosakbd_suspend(struct platform_device *dev, pm_message_t state)
>
> del_timer_sync(&tosakbd->timer);
>

What if interrupt comes here? The whole suspend path seems racy with
interrup handler/timer.

> + PGSR1 = (PGSR1 & ~TOSA_GPIO_LOW_STROBE_BIT);
> + PGSR2 = (PGSR2 & ~TOSA_GPIO_HIGH_STROBE_BIT);
> +
> return 0;
> }
>

--
Dmitry
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