diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2011-03-25 17:43:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-14 13:02:17 -0700 |
| commit | d0325b60bff25923b488313f2ef10d88050bd67e (patch) | |
| tree | 4847db89e5a3323db0dc97f5c072ff0f67b4491d /drivers | |
| parent | b544388a92e32a0f8a2a1cccc70fcf455b92fb5d (diff) | |
ath9k: fix a chip wakeup related crash in ath9k_start
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 <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index a09d15f7aa6..0848e099547 100644 --- 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_hw *hw) "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_hw *hw) mutex_unlock: mutex_unlock(&sc->mutex); + ath9k_ps_restore(sc); + return r; } |