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Message-ID: <20090622085204.GA22333@gondor.apana.org.au>
Date:	Mon, 22 Jun 2009 16:52:04 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: ax25: Use skb_orphan before touching skb destructor

Hi Dave:

This is the first in a series of patches (yet to be written :)
to allow the removal of the skb_orphan call that I recently
added to netif_receive_skb.

ax25: Use skb_orphan before touching skb destructor

Before taking ownership of skb->destructor, we should ensure
that the existing destructor is called through skb_orphan.

In future this should be moved further down to where we actually
call skb_set_owner_*.

Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

diff --git a/net/ax25/ax25_in.c b/net/ax25/ax25_in.c
index 5f1d210..de56d39 100644
--- a/net/ax25/ax25_in.c
+++ b/net/ax25/ax25_in.c
@@ -437,8 +437,7 @@ free:
 int ax25_kiss_rcv(struct sk_buff *skb, struct net_device *dev,
 		  struct packet_type *ptype, struct net_device *orig_dev)
 {
-	skb->sk = NULL;		/* Initially we don't know who it's for */
-	skb->destructor = NULL;	/* Who initializes this, dammit?! */
+	skb_orphan(skb);
 
 	if (!net_eq(dev_net(dev), &init_net)) {
 		kfree_skb(skb);

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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