From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 4/4] netfilter: nf_tables: fix error return code
Date: Mon, 11 Aug 2014 19:06:19 +0200 [thread overview]
Message-ID: <1407776779-9113-5-git-send-email-pablo@netfilter.org> (raw)
In-Reply-To: <1407776779-9113-1-git-send-email-pablo@netfilter.org>
From: Julia Lawall <Julia.Lawall@lip6.fr>
Convert a zero return value on error to a negative one, as returned
elsewhere in the function.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/netfilter/nf_tables_api.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 9aa31f1..deeb95f 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3137,8 +3137,10 @@ static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set,
goto err2;
trans = nft_trans_elem_alloc(ctx, NFT_MSG_DELSETELEM, set);
- if (trans == NULL)
+ if (trans == NULL) {
+ err = -ENOMEM;
goto err2;
+ }
nft_trans_elem(trans) = elem;
list_add_tail(&trans->list, &ctx->net->nft.commit_list);
--
1.7.10.4
prev parent reply other threads:[~2014-08-11 17:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-11 17:06 [PATCH 0/4] Netfilter fixes for net Pablo Neira Ayuso
2014-08-11 17:06 ` [PATCH 1/4] netfilter: nf_tables: uninitialize element key/data from the commit path Pablo Neira Ayuso
2014-08-11 17:06 ` [PATCH 2/4] netfilter: nf_tables: don't update chain with unset counters Pablo Neira Ayuso
2014-08-11 17:06 ` [PATCH 3/4] netfilter: don't use mutex_lock_interruptible() Pablo Neira Ayuso
2014-08-11 17:06 ` Pablo Neira Ayuso [this message]
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