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-rw-r--r--drivers/net/wireless/rtl818x/rtl8180/dev.c7
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 fad616a0fa37..3867d1470b36 100644
--- a/drivers/net/wireless/rtl818x/rtl8180/dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c
@@ -276,6 +276,13 @@ static void rtl8180_tx(struct ieee80211_hw *dev,
mapping = pci_map_single(priv->pdev, skb->data,
skb->len, PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(priv->pdev, mapping)) {
+ kfree_skb(skb);
+ dev_err(&priv->pdev->dev, "TX DMA mapping error\n");
+ return;
+
+ }
+
tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
RTL818X_TX_DESC_FLAG_LS |
(ieee80211_get_tx_rate(dev, info)->hw_value << 24) |