linux-kernel - Re: [PATCH] Fixed too small hardcoded timeout values for usb_control_msg in driver for SiliconLabs cp210x-based usb-to-serial adapters. Replaced with USB_CTRL_GET_TIMEOUT/USB_CTRL_SET

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Message-ID: <20120420090457.GA23077@shutemov.name>
Date:	Fri, 20 Apr 2012 12:04:57 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Yuri Matylitski <ym@...insoft.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Johan Hovold <jhovold@...il.com>,
	Preston Fick <preston.fick@...abs.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fixed too small hardcoded timeout values for
 usb_control_msg in driver for SiliconLabs cp210x-based usb-to-serial
 adapters. Replaced with USB_CTRL_GET_TIMEOUT/USB_CTRL_SET_TIMEOUT.

On Fri, Apr 20, 2012 at 11:32:02AM +0300, Yuri Matylitski wrote:

The first line of the commit message (which is in Subject) should be a
short summary of the change. More detailed description should be added
after an empty line.

More commit message hints:

http://who-t.blogspot.com/2009/12/on-commit-messages.html

Otherwise:

Acked-by: Kirill A. Shutemov <kirill@...temov.name>

> Signed-off-by: Yuri Matylitski <ym@...insoft.com>
> ---
>  drivers/usb/serial/cp210x.c |    9 ++++++---
>  1 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
> index 0310e2d..e56066b 100644
> --- a/drivers/usb/serial/cp210x.c
> +++ b/drivers/usb/serial/cp210x.c
> @@ -287,7 +287,8 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request,
>  	/* Issue the request, attempting to read 'size' bytes */
>  	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
>  				request, REQTYPE_DEVICE_TO_HOST, 0x0000,
> -				port_priv->bInterfaceNumber, buf, size, 300);
> +				port_priv->bInterfaceNumber, buf, size,
> +				USB_CTRL_GET_TIMEOUT);
>  
>  	/* Convert data into an array of integers */
>  	for (i = 0; i < length; i++)
> @@ -340,12 +341,14 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request,
>  		result = usb_control_msg(serial->dev,
>  				usb_sndctrlpipe(serial->dev, 0),
>  				request, REQTYPE_HOST_TO_DEVICE, 0x0000,
> -				port_priv->bInterfaceNumber, buf, size, 300);
> +				port_priv->bInterfaceNumber, buf, size,
> +				USB_CTRL_SET_TIMEOUT);
>  	} else {
>  		result = usb_control_msg(serial->dev,
>  				usb_sndctrlpipe(serial->dev, 0),
>  				request, REQTYPE_HOST_TO_DEVICE, data[0],
> -				port_priv->bInterfaceNumber, NULL, 0, 300);
> +				port_priv->bInterfaceNumber, NULL, 0,
> +				USB_CTRL_SET_TIMEOUT);
>  	}
>  
>  	kfree(buf);
> -- 
> 1.7.0.4
> 

-- 
 Kirill A. Shutemov
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