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netfilter: bitwise: replace gotos with returns.

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When dumping a bitwise expression, if any of the puts fails, we use goto
to jump to a label.  However, no clean-up is required and the only
statement at the label is a return.  Drop the goto's and return
immediately instead.

Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Jeremy Sowden 2020-01-15 20:05:50 +00:00 committed by Pablo Neira Ayuso
parent 265ec7b0e8
commit 577c734a81
1 changed files with 5 additions and 8 deletions
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13
net/netfilter/nft_bitwise.c
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@ -107,24 +107,21 @@ static int nft_bitwise_dump(struct sk_buff *skb, const struct nft_expr *expr)
const struct nft_bitwise *priv = nft_expr_priv(expr);
if (nft_dump_register(skb, NFTA_BITWISE_SREG, priv->sreg))
goto nla_put_failure;
return -1;
if (nft_dump_register(skb, NFTA_BITWISE_DREG, priv->dreg))
goto nla_put_failure;
return -1;
if (nla_put_be32(skb, NFTA_BITWISE_LEN, htonl(priv->len)))
goto nla_put_failure;
return -1;
if (nft_data_dump(skb, NFTA_BITWISE_MASK, &priv->mask,
NFT_DATA_VALUE, priv->len) < 0)
goto nla_put_failure;
return -1;
if (nft_data_dump(skb, NFTA_BITWISE_XOR, &priv->xor,
NFT_DATA_VALUE, priv->len) < 0)
goto nla_put_failure;
return -1;
return 0;
nla_put_failure:
return -1;
}
static struct nft_data zero;