linux-kernel - Re: [PATCH 1/3] USB : serial : call handle_dcd

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Message-ID: <52336299.6070508@cogentembedded.com>
Date:	Fri, 13 Sep 2013 23:08:09 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Paul Chavent <Paul.Chavent@...ra.fr>
CC:	linux-usb@...r.kernel.org, gregkh@...uxfoundation.org,
	jhovold@...il.com, fschaefer.oss@...glemail.com, jslaby@...e.cz,
	max@...e.de, giometti@...eenne.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] USB : serial : call handle_dcd_change in ftdi driver.

Hello.

On 09/13/2013 07:35 PM, Paul Chavent wrote:

> Signed-off-by: Paul Chavent <paul.chavent@...ra.fr>
> ---
>   drivers/usb/serial/ftdi_sio.c | 8 +++++++-
>   1 file changed, 7 insertions(+), 1 deletion(-)

> diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
> index c45f9c0..df66495 100644
> --- a/drivers/usb/serial/ftdi_sio.c
> +++ b/drivers/usb/serial/ftdi_sio.c
> @@ -1966,8 +1966,14 @@ static int ftdi_process_packet(struct usb_serial_port *port,
>   			port->icount.dsr++;
>   		if (diff_status & FTDI_RS0_RI)
>   			port->icount.rng++;
> -		if (diff_status & FTDI_RS0_RLSD)
> +		if (diff_status & FTDI_RS0_RLSD) {
>   			port->icount.dcd++;
> +			struct tty_struct *tty = tty_port_tty_get(&port->port);

    Don't mix declaration and code. And add an empty line between them please.

> +			if (tty)
> +				usb_serial_handle_dcd_change(port, tty,
> +						status & FTDI_RS0_RLSD);
> +			tty_kref_put(tty);
> +		}

WBR, Sergei


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