ath5k: always calculate ANI listen time

Calculate 'listen' time also when automatic ANI is off, since this and the
"busy" time is useful information also in manual mode.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath5k/ani.c

@@ -481,14 +481,15 @@ ath5k_ani_calibration(struct ath5k_hw *ah)
 	struct ath5k_ani_state *as = &ah->ah_sc->ani_state;
 	int listen, ofdm_high, ofdm_low, cck_high, cck_low;
 
-	if (as->ani_mode != ATH5K_ANI_MODE_AUTO)
-		return;
-
 	/* get listen time since last call and add it to the counter because we
-	 * might not have restarted the "ani period" last time */
+	 * might not have restarted the "ani period" last time.
+	 * always do this to calculate the busy time also in manual mode */
 	listen = ath5k_hw_ani_get_listen_time(ah, as);
 	as->listen_time += listen;
 
+	if (as->ani_mode != ATH5K_ANI_MODE_AUTO)
+		return;
+
 	ath5k_ani_save_and_clear_phy_errors(ah, as);
 
 	ofdm_high = as->listen_time * ATH5K_ANI_OFDM_TRIG_HIGH / 1000;