-stable review patch.  If anyone has any objections, please let us know.
---------------------

From: Patrick McHardy <kaber@trash.net>

Upstream commit eb1197bc0:

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>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

 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(-)

--- 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_buf
 {
 	struct ebt_nat_info *info = (struct ebt_nat_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);
--- 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
 {
 	struct ebt_redirect_info *info = (struct ebt_redirect_info *)data;
 
-	if (skb_make_writable(skb, 0))
+	if (!skb_make_writable(skb, 0))
 		return NF_DROP;
 
 	if (hooknr != NF_BR_BROUTING)
--- 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_buf
 {
 	struct ebt_nat_info *info = (struct ebt_nat_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);
--- 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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