From 787082ab9f7be4711e52f67c388535eda74a1269 Mon Sep 17 00:00:00 2001 From: Ilya Lipnitskiy Date: Thu, 22 Apr 2021 22:20:56 -0700 Subject: net: ethernet: mtk_eth_soc: fix build_skb cleanup In case build_skb fails, call skb_free_frag on the correct pointer. Also update the DMA structures with the new mapping before exiting, because the mapping was successful Suggested-by: Felix Fietkau Signed-off-by: Ilya Lipnitskiy Signed-off-by: David S. Miller --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 5 +++-- 1 file 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 540003f3fcb8..07daa5de8bec 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -1304,9 +1304,9 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, /* receive data */ skb = build_skb(data, ring->frag_size); if (unlikely(!skb)) { - skb_free_frag(new_data); + skb_free_frag(data); netdev->stats.rx_dropped++; - goto release_desc; + goto skip_rx; } skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN); @@ -1326,6 +1326,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, skb_record_rx_queue(skb, 0); napi_gro_receive(napi, skb); +skip_rx: ring->data[idx] = new_data; rxd->rxd1 = (unsigned int)dma_addr; -- cgit v1.2.3