commit: f62d816fc4324afbb7cf90110c70b6a14139b225 From: Felix Fietkau <[email protected]> Date: Fri, 25 Mar 2011 17:43:41 +0100 Subject: [PATCH] ath9k: fix a chip wakeup related crash in ath9k_start
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]> Cc: [email protected] Signed-off-by: John W. Linville <[email protected]> --- 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 5248257..dddb85d 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1048,6 +1048,8 @@ 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); /* setup initial channel */ @@ -1143,6 +1145,8 @@ static int ath9k_start(struct ieee80211_hw *hw) mutex_unlock: mutex_unlock(&sc->mutex); + ath9k_ps_restore(sc); + return r; } _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
