diff options
| -rw-r--r-- | drivers/net/pppol2tp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c index 9fbb2eba9a06..5861ee9599a2 100644 --- a/drivers/net/pppol2tp.c +++ b/drivers/net/pppol2tp.c | |||
| @@ -1180,7 +1180,8 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) | |||
| 1180 | /* Calculate UDP checksum if configured to do so */ | 1180 | /* Calculate UDP checksum if configured to do so */ |
| 1181 | if (sk_tun->sk_no_check == UDP_CSUM_NOXMIT) | 1181 | if (sk_tun->sk_no_check == UDP_CSUM_NOXMIT) |
| 1182 | skb->ip_summed = CHECKSUM_NONE; | 1182 | skb->ip_summed = CHECKSUM_NONE; |
| 1183 | else if (!(skb_dst(skb)->dev->features & NETIF_F_V4_CSUM)) { | 1183 | else if ((skb_dst(skb) && skb_dst(skb)->dev) && |
| 1184 | (!(skb_dst(skb)->dev->features & NETIF_F_V4_CSUM))) { | ||
| 1184 | skb->ip_summed = CHECKSUM_COMPLETE; | 1185 | skb->ip_summed = CHECKSUM_COMPLETE; |
| 1185 | csum = skb_checksum(skb, 0, udp_len, 0); | 1186 | csum = skb_checksum(skb, 0, udp_len, 0); |
| 1186 | uh->check = csum_tcpudp_magic(inet->inet_saddr, | 1187 | uh->check = csum_tcpudp_magic(inet->inet_saddr, |