netdev - Re: [PATCH] net: can: usb: peak_usb: pcan_usb_core.c: Cleaning up missing null-terminate in conjunction with strncpy

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Date:	Tue, 16 Sep 2014 16:09:32 +0200
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Wolfgang Grandegger <wg@...ndegger.com>
CC:	Oliver Hartkopp <socketcan@...tkopp.net>,
	Stephane Grosjean <s.grosjean@...k-system.com>,
	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	"Christopher R. Baker" <cbaker@....ri.cmu.edu>,
	linux-can@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: can: usb: peak_usb: pcan_usb_core.c:  Cleaning up
 missing null-terminate in conjunction with strncpy

On 09/14/2014 07:31 PM, Rickard Strandqvist wrote:
> Replacing strncpy with strlcpy to avoid strings that lacks null terminate.
> 
> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
> ---
>  drivers/net/can/usb/peak_usb/pcan_usb_core.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
> index 644e6ab..d4fe8ac 100644
> --- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
> +++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
> @@ -830,7 +830,7 @@ static void peak_usb_disconnect(struct usb_interface *intf)
>  		char name[IFNAMSIZ];
>  
>  		dev->state &= ~PCAN_USB_STATE_CONNECTED;
> -		strncpy(name, netdev->name, IFNAMSIZ);
> +		strlcpy(name, netdev->name, IFNAMSIZ);
>  
>  		unregister_netdev(netdev);
>  		free_candev(netdev);
> 

What about removing the dev_info(), the name array and the str?cpy()
completely?

Marc

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