From 47380a4388c18e700f45a03131020a0eabefdba0 Mon Sep 17 00:00:00 2001 From: Florian Fainelli <florian@openwrt.org> Date: Thu, 9 Aug 2012 09:06:35 +0000 Subject: [PATCH] nuport-mac: use dma_mapping_error() instead of checking pointers Thanks Gabor for spotting this SVN-Revision: 33071 --- .../files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c b/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c index 833e6fa018..a2f7ee2cd5 100644 --- a/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c +++ b/target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c @@ -256,7 +256,7 @@ static int nuport_mac_start_tx_dma(struct nuport_mac_priv *priv, priv->tx_addr = dma_map_single(&priv->pdev->dev, skb->data, skb->len, DMA_TO_DEVICE); - if (!priv->tx_addr) + if (dma_mapping_error(&priv->pdev->dev, priv->tx_addr)) return -ENOMEM; /* enable enhanced mode */ @@ -299,7 +299,7 @@ static int nuport_mac_start_rx_dma(struct nuport_mac_priv *priv, priv->rx_addr = dma_map_single(&priv->pdev->dev, skb->data, RX_ALLOC_SIZE, DMA_FROM_DEVICE); - if (!priv->rx_addr) + if (dma_mapping_error(&priv->pdev->dev, priv->rx_addr)) return -ENOMEM; nuport_mac_writel(priv->rx_addr, RX_BUFFER_ADDR); -- GitLab