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netpoll: accept NULL np argument in netpoll_send_skb()

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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>
This commit is contained in:
Eric Dumazet
2020-05-07 09:32:21 -07:00
committed by David S. Miller
parent 1ddabdfaf7
commit f78ed2204d
7 changed files with 17 additions and 24 deletions
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5
net/bridge/br_private.h
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@@ -598,10 +598,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev);
static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
struct sk_buff *skb)
{
struct netpoll *np = p->np;
if (np)
netpoll_send_skb(np, skb);
netpoll_send_skb(p->np, skb);
}
int br_netpoll_enable(struct net_bridge_port *p);