On 03/14/2016 08:16 AM, Geert Uytterhoeven wrote:
> Note that mutex_lock() should not be called with interrupts disabled.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> ---
> Documentation/serial/driver | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/Documentation/serial/driver b/Documentation/serial/driver
> index 3b08df5bcc17e944..09e73e061fcf795c 100644
> --- a/Documentation/serial/driver
> +++ b/Documentation/serial/driver
> @@ -177,8 +177,7 @@ hardware.
> should be terminated when another call is made with a zero
> ctl.
>
> - Locking: none.
> - Interrupts: caller dependent.
> + Locking: caller holds port->mutex
> This call must not sleep
^^^^^^^
And remove this line as well.
>
> startup(port)
>
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