mwl8k: Unmap the pci DMA address in xmit error path

We should unmap the DMA address in the error path, else it
causes resource leaks. Fix this.

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 996176596e0..5b5b9ecbf1f 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -2005,6 +2005,8 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw,
                                 spin_unlock(&priv->stream_lock);
                         }
                         spin_unlock_bh(&priv->tx_lock);
+                        pci_unmap_single(priv->pdev, dma, skb->len,
+                                         PCI_DMA_TODEVICE);
                         dev_kfree_skb(skb);
                         return;
                 }