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dp83640: free packet queues on remove 

If the PHY should disappear (for example, on an USB Ethernet MAC), then
the driver would leak any undelivered time stamp packets. This commit
fixes the issue by calling the appropriate functions to free any packets
left in the transmit and receive queues.

The driver first appeared in v3.0.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Richard Cochran 2011-10-21 00:49:17 +00:00 committed by David S. Miller
parent f5ff7cd1a8
commit 8b3408f8ee
1 changed files with 7 additions and 0 deletions
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7
drivers/net/phy/dp83640.c
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@ -1007,6 +1007,7 @@ static void dp83640_remove(struct phy_device *phydev)
struct dp83640_clock *clock;
struct list_head *this, *next;
struct dp83640_private *tmp, *dp83640 = phydev->priv;
struct sk_buff *skb;
if (phydev->addr == BROADCAST_ADDR)
return;
@ -1014,6 +1015,12 @@ static void dp83640_remove(struct phy_device *phydev)
enable_status_frames(phydev, false);
cancel_work_sync(&dp83640->ts_work);
while ((skb = skb_dequeue(&dp83640->rx_queue)) != NULL)
kfree_skb(skb);
while ((skb = skb_dequeue(&dp83640->tx_queue)) != NULL)
skb_complete_tx_timestamp(skb, NULL);
clock = dp83640_clock_get(dp83640->clock);
if (dp83640 == clock->chosen) {