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ath9k: Lock config_interface() callback with a mutex

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Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2009-03-03 10:16:57 +05:30 committed by John W. Linville
parent b238e90e99
commit 2554935b08
1 changed files with 7 additions and 1 deletions
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8
drivers/net/wireless/ath9k/main.c
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@ -2318,6 +2318,8 @@ static int ath9k_config_interface(struct ieee80211_hw *hw,
u32 rfilt = 0; u32 rfilt = 0;
int error, i; int error, i;
mutex_lock(&sc->mutex);
/* TODO: Need to decide which hw opmode to use for multi-interface /* TODO: Need to decide which hw opmode to use for multi-interface
* cases */ * cases */
if (vif->type == NL80211_IFTYPE_AP && if (vif->type == NL80211_IFTYPE_AP &&
@ -2373,8 +2375,10 @@ static int ath9k_config_interface(struct ieee80211_hw *hw,
ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
error = ath_beacon_alloc(sc, 0); error = ath_beacon_alloc(sc, 0);
if (error != 0) if (error != 0) {
mutex_unlock(&sc->mutex);
return error; return error;
}
ath_beacon_config(sc, 0); ath_beacon_config(sc, 0);
} }
@ -2393,6 +2397,8 @@ static int ath9k_config_interface(struct ieee80211_hw *hw,
if (vif->type == NL80211_IFTYPE_ADHOC) if (vif->type == NL80211_IFTYPE_ADHOC)
ath_update_chainmask(sc, 0); ath_update_chainmask(sc, 0);
mutex_unlock(&sc->mutex);
return 0; return 0;
} }