Re: [PATCH] USB: usbip: remove useless call in usbip_recv

From: Shuah Khan
Date: Tue Jan 02 2018 - 18:36:58 EST


On 01/02/2018 07:02 AM, Gustavo A. R. Silva wrote:
> Calling msg_data_left(&msg) is only useful for its return value,
> which in this particular case is ignored.
>
> Fix this by removing such call.
>
> Addresses-Coverity-ID: 1427080
> Fixes: 90120d15f4c3 ("usbip: prevent leaking socket pointer address in messages")
> Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
> ---
> drivers/usb/usbip/usbip_common.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/usb/usbip/usbip_common.c b/drivers/usb/usbip/usbip_common.c
> index 7b219d9..b5af6fc 100644
> --- a/drivers/usb/usbip/usbip_common.c
> +++ b/drivers/usb/usbip/usbip_common.c
> @@ -325,7 +325,6 @@ int usbip_recv(struct socket *sock, void *buf, int size)
> usbip_dbg_xmit("enter\n");
>
> do {
> - msg_data_left(&msg);
> sock->sk->sk_allocation = GFP_NOIO;
>
> result = sock_recvmsg(sock, &msg, MSG_WAITALL);
>

Thanks for the patch. Looks good to me.

Acked-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>

Greg, please pick this patch up.

thanks,
-- Shuah