ath9k: add a helper to clean the core driver upon module unload

The core driver needs to be stopped and then as a last step the
hardware needs to be stopped and its structure free'd. We do this
by moving the core driver cleanup to a new helper ath_clean_core()
and have ath_cleanup() call it. Only as a last step does
ath_cleanup() now free the hw.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index e6842dd83ce2..39b278053056 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1313,16 +1313,21 @@ static void ath_start_rfkill_poll(struct ath_softc *sc)
                 wiphy_rfkill_start_polling(sc->hw->wiphy);
 }
 
+static void ath_clean_core(struct ath_softc *sc);
+static void ath9k_uninit_hw(struct ath_softc *sc);
+
 void ath_cleanup(struct ath_softc *sc)
 {
         struct ath_hw *ah = sc->sc_ah;
         struct ath_common *common = ath9k_hw_common(ah);
 
-        ath_detach(sc);
+        ath_clean_core(sc);
         free_irq(sc->irq, sc);
         ath_bus_cleanup(common);
         kfree(sc->sec_wiphy);
         ieee80211_free_hw(sc->hw);
+
+        ath9k_uninit_hw(sc);
 }
 
 static void ath9k_uninit_hw(struct ath_softc *sc)
@@ -1336,7 +1341,7 @@ static void ath9k_uninit_hw(struct ath_softc *sc)
         sc->sc_ah = NULL;
 }
 
-void ath_detach(struct ath_softc *sc)
+static void ath_clean_core(struct ath_softc *sc)
 {
         struct ieee80211_hw *hw = sc->hw;
         struct ath_hw *ah = sc->sc_ah;
@@ -1375,7 +1380,11 @@ void ath_detach(struct ath_softc *sc)
         if ((sc->btcoex.no_stomp_timer) &&
             ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
                 ath_gen_timer_free(ah, sc->btcoex.no_stomp_timer);
+}
 
+void ath_detach(struct ath_softc *sc)
+{
+        ath_clean_core(sc);
         ath9k_uninit_hw(sc);
 }