ath9k: fix LED related crashes on AR913x

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28809 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/mac80211/patches/562-ath9k_fix_led.patch b/package/mac80211/patches/562-ath9k_fix_led.patch
new file mode 100644 (file)
index 0000000..c6fe407
--- /dev/null
+++ b/package/mac80211/patches/562-ath9k_fix_led.patch
@@ -0,0 +1,30 @@
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -1056,9 +1056,11 @@ static int ath9k_start(struct ieee80211_
+               goto mutex_unlock;
+       }
+ 
+-      ath9k_hw_cfg_output(ah, ah->led_pin,
+-                          AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+-      ath9k_hw_set_gpio(ah, ah->led_pin, 0);
++      if (ah->led_pin >= 0) {
++              ath9k_hw_cfg_output(ah, ah->led_pin,
++                                  AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
++              ath9k_hw_set_gpio(ah, ah->led_pin, 0);
++      }
+ 
+       /*
+        * Reset key cache to sane defaults (all entries cleared) instead of
+@@ -1209,8 +1211,10 @@ static void ath9k_stop(struct ieee80211_
+ 
+       spin_lock_bh(&sc->sc_pcu_lock);
+ 
+-      ath9k_hw_set_gpio(ah, ah->led_pin, 1);
+-      ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
++      if (ah->led_pin >= 0) {
++              ath9k_hw_set_gpio(ah, ah->led_pin, 1);
++              ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
++      }
+ 
+       ath_prepare_reset(sc, false, true);
+