After calling dev_queue_xmit it is no longer safe to access the
members of the skb.
Reported-by: Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Ed Cashin <ecas...@coraid.com>
---
drivers/block/aoe/aoenet.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
index ae56828..2e47404 100644
--- a/drivers/block/aoe/aoenet.c
+++ b/drivers/block/aoe/aoenet.c
@@ -55,12 +55,14 @@ static int
tx(void) __must_hold(&txlock)
{
struct sk_buff *skb;
+ struct net_device *ifp;
while ((skb = skb_dequeue(&skbtxq))) {
spin_unlock_irq(&txlock);
+ ifp = skb->dev;
if (dev_queue_xmit(skb) == NET_XMIT_DROP && net_ratelimit())
pr_warn("aoe: packet could not be sent on %s. %s\n",
- skb->dev ? skb->dev->name : "netif",
+ ifp ? ifp->name : "netif",
"consider increasing tx_queue_len");
spin_lock_irq(&txlock);
}
--
1.7.1
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