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ath9k: fix using sta->drv_priv before initializing it

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commit 7711aaf08ad3fc4d0e937eec1de0a63620444ce7 upstream.

A station pointer can be passed to the driver on tx, before it has been
marked as associated. Since ath9k_sta_state was initializing the entry
too late, it resulted in some spurious crashes.

Fixes: df3c6eb34da5 ("ath9k: Use sta_state() callback")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Felix Fietkau 2016-08-19 13:37:46 +03:00 committed by Greg Kroah-Hartman
parent 10c2897d86
commit 17127b7c69
1 changed files with 4 additions and 4 deletions
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8
drivers/net/wireless/ath/ath9k/main.c
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@ -1550,13 +1550,13 @@ static int ath9k_sta_state(struct ieee80211_hw *hw,
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
int ret = 0;
if (old_state == IEEE80211_STA_AUTH &&
new_state == IEEE80211_STA_ASSOC) {
if (old_state == IEEE80211_STA_NOTEXIST &&
new_state == IEEE80211_STA_NONE) {
ret = ath9k_sta_add(hw, vif, sta);
ath_dbg(common, CONFIG,
"Add station: %pM\n", sta->addr);
} else if (old_state == IEEE80211_STA_ASSOC &&
new_state == IEEE80211_STA_AUTH) {
} else if (old_state == IEEE80211_STA_NONE &&
new_state == IEEE80211_STA_NOTEXIST) {
ret = ath9k_sta_remove(hw, vif, sta);
ath_dbg(common, CONFIG,
"Remove station: %pM\n", sta->addr);