[PATCH net 1/1] driver: veth: Return the actual value instead return NETDEV_TX_OK always

[fgao]

From: Gao Feng <f...@ikuai8.com>

Current veth_xmit always returns NETDEV_TX_OK whatever if it is really
sent successfully. Now return the actual value instead of NETDEV_TX_OK
always.

Signed-off-by: Gao Feng <f...@ikuai8.com>
---
 drivers/net/veth.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index fbc853e..769a3bd 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -111,15 +111,18 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct 
net_device *dev)
        struct veth_priv *priv = netdev_priv(dev);
        struct net_device *rcv;
        int length = skb->len;
+       int ret = NETDEV_TX_OK;
 
        rcu_read_lock();
        rcv = rcu_dereference(priv->peer);
        if (unlikely(!rcv)) {
                kfree_skb(skb);
+               ret = NET_RX_DROP;
                goto drop;
        }
 
-       if (likely(dev_forward_skb(rcv, skb) == NET_RX_SUCCESS)) {
+       ret = dev_forward_skb(rcv, skb);
+       if (likely(ret == NET_RX_SUCCESS)) {
                struct pcpu_vstats *stats = this_cpu_ptr(dev->vstats);
 
                u64_stats_update_begin(&stats->syncp);
@@ -131,7 +134,7 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct 
net_device *dev)
                atomic64_inc(&priv->dropped);
        }
        rcu_read_unlock();
-       return NETDEV_TX_OK;
+       return ret;
 }
 
 /*
-- 
1.9.1