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netlink: don't orphan skb in netlink_trim()

Netlink doesn't account skbs to the sending socket, so the there's no
need to orphan the skb before trimming it.

Removing the skb_orphan() call is required for mmap'ed netlink, which uses
a netlink specific skb destructor that must not be invoked before the
final freeing of the skb.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy 12 years ago
parent
commit
1298ca4671
1 changed files with 1 additions and 1 deletions
  1. 1 1
      net/netlink/af_netlink.c

+ 1 - 1
net/netlink/af_netlink.c

@@ -851,7 +851,7 @@ static struct sk_buff *netlink_trim(struct sk_buff *skb, gfp_t allocation)
 {
 	int delta;
 
-	skb_orphan(skb);
+	WARN_ON(skb->sk != NULL);
 
 	delta = skb->end - skb->tail;
 	if (delta * 2 < skb->truesize)