linux-kernel - Re: [PATCH] net: can: esd_usb2: fix memory leak on disconnect

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Message-ID: <543B87DB.8090104@esd.eu>
Date:	Mon, 13 Oct 2014 10:05:47 +0200
From:	Matthias Fuchs <matthias.fuchs@....eu>
To:	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	Wolfgang Grandegger <wg@...ndegger.com>,
	Marc Kleine-Budde <mkl@...gutronix.de>
CC:	"linux-can@...r.kernel.org" <linux-can@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"ldv-project@...uxtesting.org" <ldv-project@...uxtesting.org>
Subject: Re: [PATCH] net: can: esd_usb2: fix memory leak on disconnect

Hi Alexey,

On 10/10/2014 10:31 PM, Alexey Khoroshilov wrote:
> It seems struct esd_usb2 dev is not deallocated on disconnect.
> 
> The patch adds the deallocation.
> 
> Found by Linux Driver Verification project (linuxtesting.org).
> 
> Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
> ---
>  drivers/net/can/usb/esd_usb2.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c
> index b7c9e8b11460..7a90075529c3 100644
> --- a/drivers/net/can/usb/esd_usb2.c
> +++ b/drivers/net/can/usb/esd_usb2.c
> @@ -1143,6 +1143,7 @@ static void esd_usb2_disconnect(struct usb_interface *intf)
>  			}
>  		}
>  		unlink_all_urbs(dev);
> +		kfree(dev);
>  	}
>  }
>  
> 
thanks for pointing this out. Marc, can you please catch this up.

Matthias

Acked-by: Matthias Fuchs <matthias.fuchs@....eu>
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