netdev - [PATCH 05/22] netfilter: arp_tables: remove redundant check on ret being non-zero

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Date:   Mon, 20 Mar 2017 11:08:33 +0100
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 05/22] netfilter: arp_tables: remove redundant check on ret being non-zero

From: Colin Ian King <colin.king@...onical.com>

ret is initialized to zero and if it is set to non-zero in the
xt_entry_foreach loop then we exit via the out_free label. Hence
the check for ret being non-zero is redundant and can be removed.

Detected by CoverityScan, CID#1357132 ("Logically Dead Code")

Signed-off-by: Colin Ian King <colin.king@...onical.com>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/ipv4/netfilter/arp_tables.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 6241a81fd7f5..f17dab1dee6e 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -562,8 +562,6 @@ static int translate_table(struct xt_table_info *newinfo, void *entry0,
 		    XT_ERROR_TARGET) == 0)
 			++newinfo->stacksize;
 	}
-	if (ret != 0)
-		goto out_free;
 
 	ret = -EINVAL;
 	if (i != repl->num_entries)
-- 
2.1.4