Re: [PATCH net] net/qla3xxx: fix potential memleak in ql3xxx_send()

[Leon Romanovsky]

On Thu, Nov 17, 2022 at 04:50:38PM +0800, Zhang Changzhong wrote:
> The ql3xxx_send() returns NETDEV_TX_OK without freeing skb in error
> handling case, add dev_kfree_skb_any() to fix it.

Can you please remind me why should it release?
There are no paths in ql3xxx_send() that release skb.

Thanks

> 
> Fixes: bd36b0ac5d06 ("qla3xxx: Add support for Qlogic 4032 chip.")
> Signed-off-by: Zhang Changzhong <zhangchangzhong@xxxxxxxxxx>
> ---
>  drivers/net/ethernet/qlogic/qla3xxx.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
> index 76072f8..0d57ffc 100644
> --- a/drivers/net/ethernet/qlogic/qla3xxx.c
> +++ b/drivers/net/ethernet/qlogic/qla3xxx.c
> @@ -2471,6 +2471,7 @@ static netdev_tx_t ql3xxx_send(struct sk_buff *skb,
>  					     skb_shinfo(skb)->nr_frags);
>  	if (tx_cb->seg_count == -1) {
>  		netdev_err(ndev, "%s: invalid segment count!\n", __func__);
> +		dev_kfree_skb_any(skb);
>  		return NETDEV_TX_OK;
>  	}
>  
> -- 
> 2.9.5
>