diff options
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 2372ce8c2580..3cffd1bd3067 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -2005,11 +2005,11 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, u8 *data, *new_data; struct mtk_rx_dma_v2 *rxd, trxd; int done = 0, bytes = 0; + dma_addr_t dma_addr = DMA_MAPPING_ERROR; while (done < budget) { unsigned int pktlen, *rxdcsum; struct net_device *netdev; - dma_addr_t dma_addr; u32 hash, reason; int mac = 0; @@ -2186,7 +2186,8 @@ release_desc: else rxd->rxd2 = RX_DMA_PREP_PLEN0(ring->buf_size); - if (MTK_HAS_CAPS(eth->soc->caps, MTK_36BIT_DMA)) + if (MTK_HAS_CAPS(eth->soc->caps, MTK_36BIT_DMA) && + likely(dma_addr != DMA_MAPPING_ERROR)) rxd->rxd2 |= RX_DMA_PREP_ADDR64(dma_addr); ring->calc_idx = idx; |