2.6.35-longterm review patch. If anyone has any objections, please let me know.
------------------
From: Felix Fietkau <n...@openwrt.org>
[ upstream commit f62d816fc4324afbb7cf90110c70b6a14139b225 ]
When the chip is still asleep when ath9k_start is called,
ath9k_hw_configpcipowersave can trigger a data bus error.
Signed-off-by: Felix Fietkau <n...@openwrt.org>
Signed-off-by: Andi Kleen <a...@linux.intel.com>
Cc: sta...@kernel.org
Signed-off-by: John W. Linville <linvi...@tuxdriver.com>
Index: linux-2.6.35.y/drivers/net/wireless/ath/ath9k/main.c
===================================================================
--- linux-2.6.35.y.orig/drivers/net/wireless/ath/ath9k/main.c
+++ linux-2.6.35.y/drivers/net/wireless/ath/ath9k/main.c
@@ -1124,6 +1124,8 @@ static int ath9k_start(struct ieee80211_
"Starting driver with initial channel: %d MHz\n",
curchan->center_freq);
+ ath9k_ps_wakeup(sc);
+
mutex_lock(&sc->mutex);
if (ath9k_wiphy_started(sc)) {
@@ -1238,6 +1240,8 @@ static int ath9k_start(struct ieee80211_
mutex_unlock:
mutex_unlock(&sc->mutex);
+ ath9k_ps_restore(sc);
+
return r;
}
_______________________________________________
stable mailing list
stable@linux.kernel.org
http://linux.kernel.org/mailman/listinfo/stable
