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af_packet: remove unnecessary BUG_ON() in tpacket_destruct_skb 

If skb is NULL, then stack trace is thrown anyway on dereference.
Therefore, the stack trace triggered by BUG_ON is duplicate.

Signed-off-by: Daniel Borkmann <danborkmann@googlemail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
danborkmann@iogearbox.net 2011-10-10 06:52:46 +00:00 committed by David S. Miller
parent 5bdc4f5de1
commit 95f5f803b3
1 changed files with 0 additions and 2 deletions
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2
net/packet/af_packet.c
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@ -1968,8 +1968,6 @@ static void tpacket_destruct_skb(struct sk_buff *skb)
struct packet_sock *po = pkt_sk(skb->sk);
void *ph;
BUG_ON(skb == NULL);
if (likely(po->tx_ring.pg_vec)) {
ph = skb_shinfo(skb)->destructor_arg;
BUG_ON(__packet_get_status(po, ph) != TP_STATUS_SENDING);