ath9k_common: always update value in ath9k_cmn_update_txpow

In some cases the limit may be the same as reg->power_limit, but the
actual value that the hardware uses is not up to date. In that case, a
wrong value for current tx power is tracked internally.
Fix this by unconditionally updating it.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/common.c

@@ -368,11 +368,11 @@ void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
 {
 	struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
 
-	if (reg->power_limit != new_txpow) {
+	if (reg->power_limit != new_txpow)
 		ath9k_hw_set_txpowerlimit(ah, new_txpow, false);
-		/* read back in case value is clamped */
-		*txpower = reg->max_power_level;
-	}
+
+	/* read back in case value is clamped */
+	*txpower = reg->max_power_level;
 }
 EXPORT_SYMBOL(ath9k_cmn_update_txpow);