dp83640: don't recieve time stamps twice

This patch is prompted by a static checker warning about a potential
use after free.  The concern is that netif_rx_ni() can free "skb" and we
call it twice.

When I look at the commit that added this, it looks like some stray
lines were added accidentally.  It doesn't make sense to me that we
would recieve the same data two times.  I asked the author but never
recieved a response.

I can't test this code, but I'm pretty sure my patch is correct.

Fixes: 4b063258ab93 ("dp83640: Delay scheduled work.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index e2460a57e4b1105ed398e207aa8cdfd84d03707d..ed0d10f54f2607533868dfd10e6bc9d0e09050de 100644 (file)
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -1438,8 +1438,6 @@ static bool dp83640_rxtstamp(struct phy_device *phydev,
                skb_info->tmo = jiffies + SKB_TIMESTAMP_TIMEOUT;
                skb_queue_tail(&dp83640->rx_queue, skb);
                schedule_delayed_work(&dp83640->ts_work, SKB_TIMESTAMP_TIMEOUT);
-       } else {
-               netif_rx_ni(skb);
        }
 
        return true;