2.6.36-stable review patch.  If anyone has any objections, please let us know.

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

From: Rajkumar Manoharan <[email protected]>

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 <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 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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