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authorEric Dumazet <edumazet@google.com>2020-05-07 19:32:21 +0300
committerDavid S. Miller <davem@davemloft.net>2020-05-08 04:11:07 +0300
commitf78ed2204db9fc35b545d693865bddbe0149aa1f (patch)
tree547a43f4bee21b4880397429cca2a02ab85f397c /net/8021q/vlan_dev.c
parent1ddabdfaf70c202b88925edd74c66f4707dbd92e (diff)
downloadlinux-f78ed2204db9fc35b545d693865bddbe0149aa1f.tar.xz
netpoll: accept NULL np argument in netpoll_send_skb()
netpoll_send_skb() callers seem to leak skb if the np pointer is NULL. While this should not happen, we can make the code more robust. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q/vlan_dev.c')
-rw-r--r--net/8021q/vlan_dev.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 319220b2341d..f00bb57f0f60 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -88,12 +88,11 @@ static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
static inline netdev_tx_t vlan_netpoll_send_skb(struct vlan_dev_priv *vlan, struct sk_buff *skb)
{
#ifdef CONFIG_NET_POLL_CONTROLLER
- if (vlan->netpoll)
- netpoll_send_skb(vlan->netpoll, skb);
+ return netpoll_send_skb(vlan->netpoll, skb);
#else
BUG();
-#endif
return NETDEV_TX_OK;
+#endif
}
static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb,