[patch 072/108] ath9k: Fix memleak on TX DMA failure

Greg KH
2009-07-01T01:07:32Z

[-- Attachment #1: ath9k-fix-memleak-on-tx-dma-failure.patch --]
[-- Type: text/plain, Size: 1032 bytes --]

2.6.30-stable review patch. If anyone has any objections, please let us know.

------------------

From: Sujith <Sujith.Manoharan@atheros.com>

commit 675902ef822c114c0dac17ed10eed43eb8f5c9ec upstream.

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

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/net/wireless/ath9k/xmit.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -1573,8 +1573,9 @@ static int ath_tx_setup_buffer(struct ie
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;
}