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    Subject[062/272] ath9k: fix beacon restart on channel change
    2.6.37-stable review patch.  If anyone has any objections, please let us know.

    ------------------

    From: Rajkumar Manoharan <rmanoharan@atheros.com>

    commit 1186488b4a4d4871e40cb1604ba3ede3d4b7cc90 upstream.

    Restart the beacon timers only if the beacon
    was already configured. Otherwise beacons timers
    are restarted unnecessarily in unassociated state too.

    Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
    Signed-off-by: John W. Linville <linville@tuxdriver.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    drivers/net/wireless/ath/ath9k/main.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    --- a/drivers/net/wireless/ath/ath9k/main.c
    +++ b/drivers/net/wireless/ath/ath9k/main.c
    @@ -295,7 +295,8 @@ int ath_set_channel(struct ath_softc *sc
    ath9k_hw_set_interrupts(ah, ah->imask);

    if (!(sc->sc_flags & (SC_OP_OFFCHANNEL))) {
    - ath_beacon_config(sc, NULL);
    + if (sc->sc_flags & SC_OP_BEACONS)
    + ath_beacon_config(sc, NULL);
    ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
    ath_start_ani(common);
    }



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