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ath5k: read sc->imask with sc->irqlock held

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Signed-off-by: Pavel Roskin <proski@gnu.org>

sc->imask may change if ath5k_set_current_imask() races against itself.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Pavel Roskin 2011-07-07 18:14:25 -04:00 committed by John W. Linville
parent e2df64c1d7
commit 4fc5401c14
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/ath/ath5k/base.c
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@ -1447,10 +1447,11 @@ ath5k_receive_frame_ok(struct ath5k_softc *sc, struct ath5k_rx_status *rs)
static void
ath5k_set_current_imask(struct ath5k_softc *sc)
{
enum ath5k_int imask = sc->imask;
enum ath5k_int imask;
unsigned long flags;
spin_lock_irqsave(&sc->irqlock, flags);
imask = sc->imask;
if (sc->rx_pending)
imask &= ~AR5K_INT_RX_ALL;
if (sc->tx_pending)