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hip04_eth: fix missing error handle for build_skb failed

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when build_skb failed, we should goto refill the buffer.

Signed-off-by: Weidong Wang <wangweidong1@huawei.com>
Acked-by: Ding Tainhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
wangweidong 2016-01-13 11:11:09 +08:00 committed by David S. Miller
parent 1adbfc435f
commit 701a0fd523
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/hisilicon/hip04_eth.c
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@ -500,8 +500,10 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
while (cnt && !last) {
buf = priv->rx_buf[priv->rx_head];
skb = build_skb(buf, priv->rx_buf_size);
if (unlikely(!skb))
if (unlikely(!skb)) {
net_dbg_ratelimited("build_skb failed\n");
goto refill;
}
dma_unmap_single(&ndev->dev, priv->rx_phys[priv->rx_head],
RX_BUF_SIZE, DMA_FROM_DEVICE);
@ -528,6 +530,7 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
rx++;
}
refill:
buf = netdev_alloc_frag(priv->rx_buf_size);
if (!buf)
goto done;