ath9k: Change return type for set_board_values()

We always return true, checking for 'false' return value
is bogus anyway, so fix this.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
index 3dd054b..78e5763 100644
--- a/drivers/net/wireless/ath9k/hw.c
+++ b/drivers/net/wireless/ath9k/hw.c
@@ -2277,11 +2277,7 @@
 	else
 		ath9k_hw_spur_mitigate(ah, chan);
 
-	if (!ah->eep_ops->set_board_values(ah, chan)) {
-		DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-			"error setting board options\n");
-		return -EIO;
-	}
+	ah->eep_ops->set_board_values(ah, chan);
 
 	ath9k_hw_decrease_chain_power(ah, chan);