diff options
| author | Pavel Roskin <proski@gnu.org> | 2009-04-03 20:10:26 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-04-16 10:39:07 -0400 |
| commit | 853da11b94e674445e93660f47a5f0aeeea09623 (patch) | |
| tree | f8ef7a90da0a04fb81feca8f447baf6bf47a3c3d | |
| parent | c6dbe17f193c4adc8afc6884f26efb5fa27aa8af (diff) | |
ath9k: fix access to a freed skb in ath_rx_tasklet()
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath9k/recv.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c index 71cb18d6757..dd1f3015674 100644 --- a/drivers/net/wireless/ath9k/recv.c +++ b/drivers/net/wireless/ath9k/recv.c @@ -493,6 +493,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) int hdrlen, padsize, retval; bool decrypt_error = false; u8 keyix; + __le16 fc; spin_lock_bh(&sc->rx.rxbuflock); @@ -606,6 +607,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) /* see if any padding is done by the hw and remove it */ hdr = (struct ieee80211_hdr *)skb->data; hdrlen = ieee80211_get_hdrlen_from_skb(skb); + fc = hdr->frame_control; /* The MAC header is padded to have 32-bit boundary if the * packet payload is non-zero. The general calculation for @@ -690,7 +692,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) sc->rx.rxotherant = 0; } - if (ieee80211_is_beacon(hdr->frame_control) && + if (ieee80211_is_beacon(fc) && (sc->sc_flags & SC_OP_WAIT_FOR_BEACON)) { sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON; ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); |