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net: fec: ensure fec_enet_free_buffers() properly cleans the rings 

Ensure that we do not double-free any allocations, and that any transmit
skbuffs are properly freed when we clean up the rings.

Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King 2014-07-08 00:23:25 +01:00 committed by David S. Miller
parent d6bf31431b
commit 8b7c9efa01
1 changed files with 6 additions and 1 deletions
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7
drivers/net/ethernet/freescale/fec_main.c
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@ -2079,8 +2079,13 @@ static void fec_enet_free_buffers(struct net_device *ndev)
}
bdp = fep->tx_bd_base;
for (i = 0; i < fep->tx_ring_size; i++)
for (i = 0; i < fep->tx_ring_size; i++) {
kfree(fep->tx_bounce[i]);
fep->tx_bounce[i] = NULL;
skb = fep->tx_skbuff[i];
fep->tx_skbuff[i] = NULL;
dev_kfree_skb(skb);
}
}
static int fec_enet_alloc_buffers(struct net_device *ndev)