ath9k: Fix incorrect noise floor reading for 4k EEPROM

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/eeprom.c b/drivers/net/wireless/ath9k/eeprom.c
index 68de89d..b6f9c31 100644
--- a/drivers/net/wireless/ath9k/eeprom.c
+++ b/drivers/net/wireless/ath9k/eeprom.c
@@ -439,7 +439,7 @@
 
 	switch (param) {
 	case EEP_NFTHRESH_2:
-		return pModal[1].noiseFloorThreshCh[0];
+		return pModal->noiseFloorThreshCh[0];
 	case AR_EEPROM_MAC(0):
 		return pBase->macAddr[0] << 8 | pBase->macAddr[1];
 	case AR_EEPROM_MAC(1):