From: KY Srinivasan <kys@xxxxxxxxxxxxx>
3.12-stable review patch. If anyone has any objections, please let me know.
===============
[ Upstream commit dedb845ded56ded1c62f5398a94ffa8615d4592d ]
After the packet is successfully sent, we should not touch the skb
as it may have been freed. This patch is based on the work done by
Long Li <longli@xxxxxxxxxxxxx>.
In this version of the patch I have fixed issues pointed out by David.
David, please queue this up for stable.
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
Tested-by: Long Li <longli@xxxxxxxxxxxxx>
Tested-by: Sitsofe Wheeler <sitsofe@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/net/hyperv/netvsc_drv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index f8135725bcf6..616b4e1dd44c 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -138,6 +138,7 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
struct hv_netvsc_packet *packet;
int ret;
unsigned int i, num_pages, npg_data;
+ u32 skb_length = skb->len;
/* Add multipages for skb->data and additional 2 for RNDIS */
npg_data = (((unsigned long)skb->data + skb_headlen(skb) - 1)
@@ -208,7 +209,7 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
ret = rndis_filter_send(net_device_ctx->device_ctx,
packet);
if (ret == 0) {
- net->stats.tx_bytes += skb->len;
+ net->stats.tx_bytes += skb_length;
net->stats.tx_packets++;
} else {
kfree(packet);
--
2.1.1
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