diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index fcefea8461f6..ff2875b233da 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -437,16 +437,14 @@ static void ath9k_hw_set_defaults(struct ath_hw *ah)
 		ah->config.serialize_regmode = SER_REG_MODE_AUTO;
 }
 
-static void ath9k_hw_newstate(u16 devid,
-			      struct ath_hw *ah)
+static void ath9k_hw_newstate(struct ath_hw *ah)
 {
 	ah->hw_version.magic = AR5416_MAGIC;
 	ah->regulatory.country_code = CTRY_DEFAULT;
-	ah->hw_version.devid = devid;
 	ah->hw_version.subvendorid = 0;
 
 	ah->ah_flags = 0;
-	if ((devid == AR5416_AR9100_DEVID))
+	if (ah->hw_version.devid == AR5416_AR9100_DEVID)
 		ah->hw_version.macVersion = AR_SREV_VERSION_9100;
 	if (!AR_SREV_9100(ah))
 		ah->ah_flags = AH_USE_EEPROM;
@@ -611,13 +609,12 @@ static int ath9k_hw_post_attach(struct ath_hw *ah)
 }
 
 static int ath9k_hw_do_attach(struct ath_hw *ah,
-			      u16 devid,
 			      struct ath_softc *sc)
 {
 	int r;
 	u32 i, j;
 
-	ath9k_hw_newstate(devid, ah);
+	ath9k_hw_newstate(ah);
 	ath9k_hw_set_defaults(ah);
 
 	if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
@@ -1186,9 +1183,9 @@ void ath9k_hw_detach(struct ath_hw *ah)
 	kfree(ah);
 }
 
-int ath9k_hw_attach(struct ath_hw *ah, u16 devid, struct ath_softc *sc)
+int ath9k_hw_attach(struct ath_hw *ah, struct ath_softc *sc)
 {
-	switch (devid) {
+	switch (ah->hw_version.devid) {
 	case AR5416_DEVID_PCI:
 	case AR5416_DEVID_PCIE:
 	case AR5416_AR9100_DEVID:
@@ -1198,7 +1195,7 @@ int ath9k_hw_attach(struct ath_hw *ah, u16 devid, struct ath_softc *sc)
 	case AR9285_DEVID_PCIE:
 	case AR5416_DEVID_AR9287_PCI:
 	case AR5416_DEVID_AR9287_PCIE:
-		return ath9k_hw_do_attach(ah, devid, sc);
+		return ath9k_hw_do_attach(ah, sc);
 	default:
 		break;
 	}
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 4a0d5f202a7e..c769dd6a8356 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -544,7 +544,7 @@ struct ath_hw {
 /* Attach, Detach, Reset */
 const char *ath9k_hw_probe(u16 vendorid, u16 devid);
 void ath9k_hw_detach(struct ath_hw *ah);
-int ath9k_hw_attach(struct ath_hw *ah, u16 devid, struct ath_softc *sc);
+int ath9k_hw_attach(struct ath_hw *ah, struct ath_softc *sc);
 void ath9k_hw_rfdetach(struct ath_hw *ah);
 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 		   bool bChannelChange);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index c2b9974aa094..fa2c230c3c2f 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1331,8 +1331,9 @@ static int ath_init(u16 devid, struct ath_softc *sc)
 	}
 
 	ah->ah_sc = sc;
+	ah->hw_version.devid = devid;
 
-	r = ath9k_hw_attach(ah, devid, sc);
+	r = ath9k_hw_attach(ah, sc);
 	if (r) {
 		DPRINTF(sc, ATH_DBG_FATAL,
 			"Unable to attach hardware; "