After we free skbs for receive or transmit descriptors, make sure we have no pointers to the now invalid memory address. Signed-off-by: Bruno Randolf <br1@xxxxxxxxxxx> Acked-by: Bob Copeland <me@xxxxxxxxxxxxxxx> --- drivers/net/wireless/ath/ath5k/base.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 6c303d5..5479f85 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -322,6 +322,8 @@ static inline void ath5k_txbuf_free_skb(struct ath5k_softc *sc, PCI_DMA_TODEVICE); dev_kfree_skb_any(bf->skb); bf->skb = NULL; + bf->skbaddr = 0; + bf->desc->ds_data = 0; } static inline void ath5k_rxbuf_free_skb(struct ath5k_softc *sc, @@ -337,6 +339,8 @@ static inline void ath5k_rxbuf_free_skb(struct ath5k_softc *sc, PCI_DMA_FROMDEVICE); dev_kfree_skb_any(bf->skb); bf->skb = NULL; + bf->skbaddr = 0; + bf->desc->ds_data = 0; } @@ -1455,9 +1459,12 @@ ath5k_desc_free(struct ath5k_softc *sc, struct pci_dev *pdev) /* Free memory associated with all descriptors */ pci_free_consistent(pdev, sc->desc_len, sc->desc, sc->desc_daddr); + sc->desc = NULL; + sc->desc_daddr = 0; kfree(sc->bufptr); sc->bufptr = NULL; + sc->bbuf = NULL; } -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
