Mask out previously demanded interrupt flags because we set
new ones. Don't allow mixing them after switch from sta to
ibss and vice versa.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Cc: Luis R. Rodriguez <mcgrof@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
 
        ath5k_hw_set_intr(ah, 0);
        sc->bmisscount = 0;
+       sc->imask &= ~(AR5K_INT_BMISS | AR5K_INT_SWBA);
 
        if (sc->opmode == IEEE80211_IF_TYPE_STA) {
                sc->imask |= AR5K_INT_BMISS;