From eb1197bc0e20d3ceb450883dbd181460252f0306 Mon Sep 17 00:00:00 2001
From: Joonwoo Park <joonwpark81@gmail.com>
Date: Tue, 19 Feb 2008 17:18:47 -0800
Subject: [PATCH] [NETFILTER]: Fix incorrect use of skb_make_writable
http://bugzilla.kernel.org/show_bug.cgi?id=9920
The function skb_make_writable returns true or false.
Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/bridge/netfilter/ebt_dnat.c | 2 +-
net/bridge/netfilter/ebt_redirect.c | 2 +-
net/bridge/netfilter/ebt_snat.c | 2 +-
net/ipv4/netfilter/arpt_mangle.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index e700cbf634c2..1ec671d93dda 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -20,7 +20,7 @@ static int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
{
const struct ebt_nat_info *info = data;
- if (skb_make_writable(skb, 0))
+ if (!skb_make_writable(skb, 0))
return NF_DROP;
memcpy(eth_hdr(skb)->h_dest, info->mac, ETH_ALEN);
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index bfdf2fb60b1f..bfb9f74e2116 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -21,7 +21,7 @@ static int ebt_target_redirect(struct sk_buff *skb, unsigned int hooknr,
{
const struct ebt_redirect_info *info = data;
- if (skb_make_writable(skb, 0))
+ if (!skb_make_writable(skb, 0))
return NF_DROP;
if (hooknr != NF_BR_BROUTING)
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index e252dabbb143..204f9965fb9e 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -22,7 +22,7 @@ static int ebt_target_snat(struct sk_buff *skb, unsigned int hooknr,
{
const struct ebt_nat_info *info = data;
- if (skb_make_writable(skb, 0))
+ if (!skb_make_writable(skb, 0))
return NF_DROP;
memcpy(eth_hdr(skb)->h_source, info->mac, ETH_ALEN);
diff --git a/net/ipv4/netfilter/arpt_mangle.c b/net/ipv4/netfilter/arpt_mangle.c
index 45fa4e20094a..3f4222b0a803 100644
--- a/net/ipv4/netfilter/arpt_mangle.c
+++ b/net/ipv4/netfilter/arpt_mangle.c
@@ -19,7 +19,7 @@ target(struct sk_buff *skb,
unsigned char *arpptr;
int pln, hln;
- if (skb_make_writable(skb, skb->len))
+ if (!skb_make_writable(skb, skb->len))
return NF_DROP;
arp = arp_hdr(skb);
--
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