ath9k: Cleanup init/deinit routines

The device initialization and termination functions
were messy and convoluted. Introduce helper functions
to clarify init_softc() and simplify things in general.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 9474f9f..2311fe7a 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1242,7 +1242,7 @@
 		ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
 }
 
-void ath9k_hw_detach(struct ath_hw *ah)
+void ath9k_hw_deinit(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 
@@ -1260,7 +1260,7 @@
 	kfree(ah);
 	ah = NULL;
 }
-EXPORT_SYMBOL(ath9k_hw_detach);
+EXPORT_SYMBOL(ath9k_hw_deinit);
 
 /*******/
 /* INI */