diff options
| -rw-r--r-- | drivers/net/tg3.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 385434ff396..344490e872b 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -4659,11 +4659,16 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget) if (skb_size < 0) goto drop_it; - ri->skb = NULL; - pci_unmap_single(tp->pdev, dma_addr, skb_size, PCI_DMA_FROMDEVICE); + /* Ensure that the update to the skb happens + * after the usage of the old DMA mapping. + */ + smp_wmb(); + + ri->skb = NULL; + skb_put(skb, len); } else { struct sk_buff *copy_skb; |