diff --git a/[refs] b/[refs]
index 8fe4ada65d7c..d548d31dae80 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e70c0cfdbf98384d9ce0b7a7332b6e60ec22ad54
+refs/heads/master: 9db6b6a25fd829a0d29480785ac0770a1e76f9a4
diff --git a/trunk/drivers/net/wireless/ath/ath9k/hw.c b/trunk/drivers/net/wireless/ath/ath9k/hw.c
index 6641fbedd6d0..633fe8b6f5f7 100644
--- a/trunk/drivers/net/wireless/ath/ath9k/hw.c
+++ b/trunk/drivers/net/wireless/ath/ath9k/hw.c
@@ -1232,6 +1232,7 @@ void ath9k_hw_detach(struct ath_hw *ah)
 	ath9k_hw_rf_free(ah);
 	ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
 	kfree(ah);
+	ah = NULL;
 }
 
 /*******/