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path: root/drivers/net/ethernet/renesas
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Diffstat (limited to 'drivers/net/ethernet/renesas')
-rw-r--r--drivers/net/ethernet/renesas/sh_eth.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 738449992..01f6d5bbd 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1136,11 +1136,8 @@ static void sh_eth_ring_format(struct net_device *ndev)
break;
sh_eth_set_receive_align(skb);
- /* RX descriptor */
- rxdesc = &mdp->rx_ring[i];
/* The size of the buffer is a multiple of 32 bytes. */
buf_len = ALIGN(mdp->rx_buf_sz, 32);
- rxdesc->len = cpu_to_le32(buf_len << 16);
dma_addr = dma_map_single(&ndev->dev, skb->data, buf_len,
DMA_FROM_DEVICE);
if (dma_mapping_error(&ndev->dev, dma_addr)) {
@@ -1148,6 +1145,10 @@ static void sh_eth_ring_format(struct net_device *ndev)
break;
}
mdp->rx_skbuff[i] = skb;
+
+ /* RX descriptor */
+ rxdesc = &mdp->rx_ring[i];
+ rxdesc->len = cpu_to_le32(buf_len << 16);
rxdesc->addr = cpu_to_le32(dma_addr);
rxdesc->status = cpu_to_le32(RD_RACT | RD_RFP);
@@ -1163,7 +1164,8 @@ static void sh_eth_ring_format(struct net_device *ndev)
mdp->dirty_rx = (u32) (i - mdp->num_rx_ring);
/* Mark the last entry as wrapping the ring. */
- rxdesc->status |= cpu_to_le32(RD_RDLE);
+ if (rxdesc)
+ rxdesc->status |= cpu_to_le32(RD_RDLE);
memset(mdp->tx_ring, 0, tx_ringsize);