Commit 051b9191 authored Mar 23, 2009 by Luis R. Rodriguez Committed by John W. Linville Mar 27, 2009

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>

parent 14344b81

drivers/net/wireless/ath9k/recv.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -344,9 +344,14 @@ 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)
		ath_descdma_cleanup(sc, &sc->rx.rxdma, &sc->rx.rxbuf);