From: Ioana Ciornei Date: Wed, 24 Jun 2020 11:34:18 +0000 (+0300) Subject: dpaa2-eth: check the result of skb_to_sgvec() X-Git-Tag: microblaze-v5.10~134^2~419^2~3 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=37fbbdda63538f1bcebd566b75fa1865d30b6b19;p=linux-2.6-microblaze.git dpaa2-eth: check the result of skb_to_sgvec() Before passing the result of skb_to_sgvec() to dma_map_sg() check if any error was returned. Signed-off-by: Ioana Ciornei Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index f150cd454fa4..db27f959d409 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -611,6 +611,10 @@ static int build_sg_fd(struct dpaa2_eth_priv *priv, sg_init_table(scl, nr_frags + 1); num_sg = skb_to_sgvec(skb, scl, 0, skb->len); + if (unlikely(num_sg < 0)) { + err = -ENOMEM; + goto dma_map_sg_failed; + } num_dma_bufs = dma_map_sg(dev, scl, num_sg, DMA_BIDIRECTIONAL); if (unlikely(!num_dma_bufs)) { err = -ENOMEM;