netdev - Re: [PATCH v3] nfp: abm: fix memory leak in nfp_abm_u32_knode

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Date:   Fri, 27 Sep 2019 14:12:42 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Navid Emamdoost <navid.emamdoost@...il.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        netdev@...r.kernel.org, oss-drivers@...ronome.com
Cc:     Navid Emamdoost <emamd001@....edu>, Kangjie Lu <kjlu@....edu>,
        Stephen A McCamant <smccaman@....edu>,
        Colin Ian King <colin.king@...onical.com>,
        "David S. Miller" <davem@...emloft.net>,
        John Hurley <john.hurley@...ronome.com>,
        Pablo Neira <pablo@...filter.org>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH v3] nfp: abm: fix memory leak in nfp_abm_u32_knode_replace

> Updated other gotos to have correct errno returned, too.

How do you think about to add a jump target here?


> +++ b/drivers/net/ethernet/netronome/nfp/abm/cls.c
> @@ -176,8 +176,10 @@ nfp_abm_u32_knode_replace(struct nfp_abm_link *alink,
>  	u8 mask, val;
>  	int err;
>
> -	if (!nfp_abm_u32_check_knode(alink->abm, knode, proto, extack))
> +	if (!nfp_abm_u32_check_knode(alink->abm, knode, proto, extack)) {
> +		err = -EOPNOTSUPP;
>  		goto err_delete;
> +	}
>
>  	tos_off = proto == htons(ETH_P_IP) ? 16 : 20;

-		goto err_delete;
+		goto e_opnotsupp;


> @@ -221,7 +227,7 @@ nfp_abm_u32_knode_replace(struct nfp_abm_link *alink,
>

+e_opnotsupp:
+	err = -EOPNOTSUPP;

>  err_delete:
>  	nfp_abm_u32_knode_delete(alink, knode);
> -	return -EOPNOTSUPP;
> +	return err;
>  }
>
>  static int nfp_abm_setup_tc_block_cb(enum tc_setup_type type,


Can such a change variant be a bit nicer?

Regards,
Markus