Openwrt/package/mac80211/patches/320-rx_dma_unmap.patch
2009-01-30 09:41:55 +00:00

38 lines
1.1 KiB
Diff

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>
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -310,6 +310,19 @@ static inline void ath5k_txbuf_free(stru
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,
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);