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ath5k: properly free rx dma descriptors 

When freeing rx dma descriptors, use the right buffer size.
Fixes kernel oopses on module unload on ixp4xx and most likely
other platforms as well.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2009-01-30 01:36:48 +01:00 committed by John W. Linville
parent c1b4aa3fb6
commit a6c8d375f5
1 changed files with 14 additions and 1 deletions
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15
drivers/net/wireless/ath5k/base.c
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@ -310,6 +310,19 @@ static inline void ath5k_txbuf_free(struct ath5k_softc *sc,
bf->skb = NULL;
}
static inline void ath5k_rxbuf_free(struct ath5k_softc *sc,
struct ath5k_buf *bf)
{
BUG_ON(!bf);
if (!bf->skb)
return;
pci_unmap_single(sc->pdev, bf->skbaddr, sc->rxbufsize,
PCI_DMA_FROMDEVICE);
dev_kfree_skb_any(bf->skb);
bf->skb = NULL;
}
/* Queues setup */
static struct ath5k_txq *ath5k_txq_setup(struct ath5k_softc *sc,
int qtype, int subtype);
@ -1343,7 +1356,7 @@ ath5k_desc_free(struct ath5k_softc *sc, struct pci_dev *pdev)
list_for_each_entry(bf, &sc->txbuf, list)
ath5k_txbuf_free(sc, bf);
list_for_each_entry(bf, &sc->rxbuf, list)
ath5k_txbuf_free(sc, bf);
ath5k_rxbuf_free(sc, bf);
/* Free memory associated with all descriptors */
pci_free_consistent(pdev, sc->desc_len, sc->desc, sc->desc_daddr);