[PATCHv3 4/6] tun: orphan frags on xmit

From: Michael S. Tsirkin
Date: Fri Jul 20 2012 - 15:22:34 EST


tun xmit is actually receive of the internal tun
socket. Orphan the frags same as we do for normal rx path.

Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
---
drivers/net/tun.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index f3a454c..b95a7f4 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -416,6 +416,8 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)

/* Orphan the skb - required as we might hang on to it
* for indefinite time. */
+ if (unlikely(skb_orphan_frags(skb, GFP_ATOMIC)))
+ goto drop;
skb_orphan(skb);

/* Enqueue packet */
--
MST

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