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>

1 files changed, 0 insertions, 2 deletions

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index dac91abf4c0..7b5f0325301 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -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);