linux-kernel - [062/272] ath9k: fix beacon restart on channel change

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Date:	Tue, 15 Feb 2011 16:11:59 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Rajkumar Manoharan <rmanoharan@...eros.com>,
	"John W. Linville" <linville@...driver.com>
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@...eros.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@...eros.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.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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