From 39d63f2a3f95dce96e65f88c0a4560c3ca857a5f Mon Sep 17 00:00:00 2001 From: Bruno Randolf Date: Wed, 16 Jun 2010 19:11:41 +0900 Subject: [PATCH] ath5k: reset more pointers after we free skbs 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 Acked-by: Bob Copeland Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/base.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 6c303d5d46c6..5479f85fcd35 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; } -- 2.20.1