net: fix memory leak on oom with zerocopy

If orphan flags fails, we don't free the skb
on receive, which leaks the skb memory.

Return value was also wrong: netif_receive_skb
is supposed to return NET_RX_DROP, not ENOMEM.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index d7fe32c946c1..ac7609d85187 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3322,7 +3322,7 @@ ncls:
 
         if (pt_prev) {
                 if (unlikely(skb_orphan_frags(skb, GFP_ATOMIC)))
-                        ret = -ENOMEM;
+                        goto drop;
                 else
                         ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
         } else {