public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-10-31 08:44:41 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

ravb: Double free on error in ravb_start_xmit()

Browse source 
If skb_put_padto() fails then it frees the skb.  I shifted that code
up a bit to make my error handling a little simpler.

Fixes: a0d2f20650 ("Renesas Ethernet AVB PTP clock driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter 2017-04-22 13:46:56 +03:00 • committed by David S. Miller
parent b40c5f4fde
commit 9199cb7677
1 changed files with 4 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/net/ethernet/renesas/ravb_main.c
View file

@ -1516,11 +1516,12 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
spin_unlock_irqrestore(&priv->lock, flags);
return NETDEV_TX_BUSY;
}
entry = priv->cur_tx[q] % (priv->num_tx_ring[q] * NUM_TX_DESC);
priv->tx_skb[q][entry / NUM_TX_DESC] = skb;
if (skb_put_padto(skb, ETH_ZLEN))
goto drop;
goto exit;
entry = priv->cur_tx[q] % (priv->num_tx_ring[q] * NUM_TX_DESC);
priv->tx_skb[q][entry / NUM_TX_DESC] = skb;
buffer = PTR_ALIGN(priv->tx_align[q], DPTR_ALIGN) +
entry / NUM_TX_DESC * DPTR_ALIGN;