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| author | Zhang Changzhong <zhangchangzhong@huawei.com> | 2022-10-28 05:09:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-10 20:14:18 +0300 |
| commit | c85ee1c3cbc6b3e6e0a10918e49c2266b18089eb (patch) | |
| tree | 3013df00753ed9beefd7e81539ff359ea8190260 /drivers | |
| parent | 52438e734c1566f5e2bcd9a065d2d65e306c0555 (diff) | |
| download | linux-c85ee1c3cbc6b3e6e0a10918e49c2266b18089eb.tar.xz | |
net: fec: fix improper use of NETDEV_TX_BUSY
[ Upstream commit 06a4df5863f73af193a4ff7abf7cb04058584f06 ]
The ndo_start_xmit() method must not free skb when returning
NETDEV_TX_BUSY, since caller is going to requeue freed skb.
Fix it by returning NETDEV_TX_OK in case of dma_map_single() fails.
Fixes: 79f339125ea3 ("net: fec: Add software TSO support")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index e183caf38176..686bb873125c 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -623,7 +623,7 @@ fec_enet_txq_put_data_tso(struct fec_enet_priv_tx_q *txq, struct sk_buff *skb, dev_kfree_skb_any(skb); if (net_ratelimit()) netdev_err(ndev, "Tx DMA memory map failed\n"); - return NETDEV_TX_BUSY; + return NETDEV_TX_OK; } bdp->cbd_datlen = cpu_to_fec16(size); @@ -685,7 +685,7 @@ fec_enet_txq_put_hdr_tso(struct fec_enet_priv_tx_q *txq, dev_kfree_skb_any(skb); if (net_ratelimit()) netdev_err(ndev, "Tx DMA memory map failed\n"); - return NETDEV_TX_BUSY; + return NETDEV_TX_OK; } } |