From 051b919188650fe4c93ca8701183ae88439388f6 Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Mon, 23 Mar 2009 18:25:01 -0400 Subject: [PATCH] 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 Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/recv.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) 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) -- 2.20.1