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ath9k: Fix memleak on TX DMA failure

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The driver-specific region has to be freed in case
of a DMA mapping failure.

Cc: stable@kernel.org
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2009-04-13 21:56:34 +05:30 committed by John W. Linville
parent d2f5b3a677
commit 675902ef82
1 changed files with 3 additions and 2 deletions
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5
drivers/net/wireless/ath/ath9k/xmit.c
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@ -1572,8 +1572,9 @@ static int ath_tx_setup_buffer(struct ieee80211_hw *hw, struct ath_buf *bf,
skb->len, DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(sc->dev, bf->bf_dmacontext))) {
bf->bf_mpdu = NULL;
DPRINTF(sc, ATH_DBG_CONFIG,
"dma_mapping_error() on TX\n");
kfree(tx_info_priv);
tx_info->rate_driver_data[0] = NULL;
DPRINTF(sc, ATH_DBG_FATAL, "dma_mapping_error() on TX\n");
return -ENOMEM;
}