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authorLuis R. Rodriguez <lrodriguez@atheros.com>2009-03-23 18:25:01 -0400
committerJohn W. Linville <linville@tuxdriver.com>2009-03-27 20:13:19 -0400
commit051b919188650fe4c93ca8701183ae88439388f6 (patch)
treebfb524a026a3b4b3fa24010fedde65440fd68d86 /drivers
parent14344b81ec264efbe59de0183f5ba38650a479a6 (diff)
downloadlinux-051b919188650fe4c93ca8701183ae88439388f6.tar.bz2
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath9k/recv.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c
index 917bac7af6f6..71cb18d6757d 100644
--- a/drivers/net/wireless/ath9k/recv.c
+++ b/drivers/net/wireless/ath9k/recv.c
@@ -344,8 +344,13 @@ void ath_rx_cleanup(struct ath_softc *sc)
list_for_each_entry(bf, &sc->rx.rxbuf, list) {
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);
+ }
}
if (sc->rx.rxdma.dd_desc_len != 0)