From: Johan Hovold <johan@kernel.org>
To: Konstantin Shkolnyy <Konstantin.Shkolnyy@silabs.com>
Cc: Martyn Welch <martyn.welch@collabora.co.uk>,
Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>,
"johan@kernel.org" <johan@kernel.org>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 2/4] USB: serial: cp210x: Switch to new 16-bit register access functions.
Date: Mon, 18 Jan 2016 18:42:36 +0100 [thread overview]
Message-ID: <20160118174236.GG3169@localhost> (raw)
In-Reply-To: <BLUPR0701MB1572B0FC50ED940FC6ED559891CC0@BLUPR0701MB1572.namprd07.prod.outlook.com>
On Thu, Jan 14, 2016 at 06:22:29PM +0000, Konstantin Shkolnyy wrote:
> > -----Original Message-----
> > From: linux-usb-owner@vger.kernel.org [mailto:linux-usb-
> > owner@vger.kernel.org] On Behalf Of Martyn Welch
> > Sent: Thursday, January 14, 2016 11:44
> > To: Konstantin Shkolnyy; johan@kernel.org
> > Cc: linux-usb@vger.kernel.org; linux-kernel@vger.kernel.org
> > Subject: Re: [PATCH v3 2/4] USB: serial: cp210x: Switch to new 16-bit register
> > access functions.
> ...
>
> > > @@ -697,14 +685,11 @@ static unsigned int
> > cp210x_quantise_baudrate(unsigned int baud)
> > >
> > > static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port)
> > > {
> > > - int result;
> > > + int err;
Why rename the return value? I prefer ret over err, but there's no need
to change such things for code that's already in place.
> > >
> > > - result = cp210x_set_config_single(port, CP210X_IFC_ENABLE,
> > > -
> > UART_ENABLE);
> > > - if (result) {
> > > - dev_err(&port->dev, "%s - Unable to enable UART\n",
> > __func__);
> > > - return result;
> > > - }
> > > + err = cp210x_write_u16_reg(port, CP210X_IFC_ENABLE,
> > UART_ENABLE);
> > > + if (err)
> > > + return err;
> >
> > Any reason for dropping the error message?
>
> I already print a message if the underlying usb_control_msg fails, so
> it should be covered there.
Yes, but it's an unrelated change. The previous error message was more
informative.
Thanks,
Johan
prev parent reply other threads:[~2016-01-18 17:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-02 3:12 [PATCH v3 2/4] USB: serial: cp210x: Switch to new 16-bit register access functions Konstantin Shkolnyy
2016-01-14 17:43 ` Martyn Welch
2016-01-14 18:22 ` Konstantin Shkolnyy
2016-01-14 18:23 ` Martyn Welch
2016-01-18 17:42 ` Johan Hovold [this message]
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