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ath9k: fix dma mapping leak of rx buffer upon rmmod 

We were claiming DMA buffers on the RX tasklet but never
upon a simple module removal.

Cc: stable@kernel.org
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-03-23 18:25:01 -04:00 committed by John W. Linville
parent 14344b81ec
commit 051b919188
1 changed files with 6 additions and 1 deletions
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7
drivers/net/wireless/ath9k/recv.c
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@ -344,8 +344,13 @@ void ath_rx_cleanup(struct ath_softc *sc)
list_for_each_entry(bf, &sc->rx.rxbuf, list) { list_for_each_entry(bf, &sc->rx.rxbuf, list) {
skb = bf->bf_mpdu; skb = bf->bf_mpdu;
if (skb) if (skb) {
dma_unmap_single(sc->dev,
bf->bf_buf_addr,
sc->rx.bufsize,
DMA_FROM_DEVICE);
dev_kfree_skb(skb); dev_kfree_skb(skb);
}
} }
if (sc->rx.rxdma.dd_desc_len != 0) if (sc->rx.rxdma.dd_desc_len != 0)