2.6.38-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Felix Fietkau <[email protected]>

commit f62d816fc4324afbb7cf90110c70b6a14139b225 upstream.

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 <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/net/wireless/ath/ath9k/main.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1063,6 +1063,8 @@ 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)) {
@@ -1179,6 +1181,8 @@ static int ath9k_start(struct ieee80211_
 mutex_unlock:
        mutex_unlock(&sc->mutex);
 
+       ath9k_ps_restore(sc);
+
        return r;
 }
 


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