diff options
| -rw-r--r-- | drivers/net/wireless/rtl818x/rtl8180/dev.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c index bf59ff988952..0102da2f145a 100644 --- a/drivers/net/wireless/rtl818x/rtl8180/dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c @@ -483,6 +483,13 @@ static int rtl8180_init_rx_ring(struct ieee80211_hw *dev) mapping = (dma_addr_t *)skb->cb; *mapping = pci_map_single(priv->pdev, skb_tail_pointer(skb), MAX_RX_SIZE, PCI_DMA_FROMDEVICE); + + if (pci_dma_mapping_error(priv->pdev, *mapping)) { + kfree_skb(skb); + wiphy_err(dev->wiphy, "Cannot map DMA for RX skb\n"); + return -ENOMEM; + } + entry->rx_buf = cpu_to_le32(*mapping); entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN | MAX_RX_SIZE); |