diff options
| author | Gabor Juhos <juhosg@openwrt.org> | 2009-07-14 20:17:13 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-07-24 15:05:18 -0400 |
| commit | 04717ccd80e5acc500239222684fcf8d2c759a84 (patch) | |
| tree | a506fc7ab3bca88e39a54952b822006d97765920 /drivers/net/wireless/ath/ath9k/hw.c | |
| parent | ebaa24534ef54a8f665558536dbef3a761a9b841 (diff) | |
ath9k: serialize ath9k_hw_setpower calls
Because ath9k_setpower is called from various contexts, we have to
protect it against concurrent calls.
Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index a115c8ceabe..6740a6b98a6 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -2728,7 +2728,8 @@ static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip) return true; } -bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode) +static bool ath9k_hw_setpower_nolock(struct ath_hw *ah, + enum ath9k_power_mode mode) { int status = true, setChip = true; static const char *modes[] = { @@ -2762,6 +2763,18 @@ bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode) return status; } +bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode) +{ + unsigned long flags; + bool ret; + + spin_lock_irqsave(&ah->ah_sc->sc_pm_lock, flags); + ret = ath9k_hw_setpower_nolock(ah, mode); + spin_unlock_irqrestore(&ah->ah_sc->sc_pm_lock, flags); + + return ret; +} + /* * Helper for ASPM support. * |