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Subject[037/152] ath9k: Disable SWBA interrupt on remove_interface
2.6.36-stable review patch.  If anyone has any objections, please let us know.

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

From: Rajkumar Manoharan <rmanoharan@atheros.com>

commit 46047784b8cdcfc916f6c1cccee0c18dd1223dfd upstream.

while removing beaconing mode interface, SWBA interrupt
was never disabled when there are no other beaconing interfaces.

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 | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1484,6 +1484,7 @@ static void ath9k_remove_interface(struc
struct ath_softc *sc = aphy->sc;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_vif *avp = (void *)vif->drv_priv;
+ bool bs_valid = false;
int i;

ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n");
@@ -1512,7 +1513,15 @@ static void ath9k_remove_interface(struc
"slot\n", __func__);
sc->beacon.bslot[i] = NULL;
sc->beacon.bslot_aphy[i] = NULL;
- }
+ } else if (sc->beacon.bslot[i])
+ bs_valid = true;
+ }
+ if (!bs_valid && (sc->sc_ah->imask & ATH9K_INT_SWBA)) {
+ /* Disable SWBA interrupt */
+ sc->sc_ah->imask &= ~ATH9K_INT_SWBA;
+ ath9k_ps_wakeup(sc);
+ ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask);
+ ath9k_ps_restore(sc);
}

sc->nvifs--;



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