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ath9k: Fix bug in accessing skb->data of rx frame for edma

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Skip the rx status portion in skb->data before accessing ieee80211
frame header.

Signed-off-by: Vasanthakumar Thiagarajan <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
This commit is contained in:
Vasanthakumar Thiagarajan 2010-05-20 14:34:47 -07:00 • committed by John W. Linville
commit 5c6dd92177
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/ath/ath9k/recv.c
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@ -1094,6 +1094,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
enum ath9k_rx_qtype qtype;
bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
int dma_type;
u8 rx_status_len = ah->caps.rx_status_len;
if (edma)
dma_type = DMA_BIDIRECTIONAL;
@ -1121,7 +1122,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
if (!skb)
continue;
hdr = (struct ieee80211_hdr *) skb->data;
hdr = (struct ieee80211_hdr *) (skb->data + rx_status_len);
rxs = IEEE80211_SKB_RXCB(skb);
hw = ath_get_virt_hw(sc, hdr);