33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Tue, 2 Aug 2016 13:00:01 +0200
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Subject: [PATCH] ath9k: fix using sta->drv_priv before initializing it
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A station pointer can be passed to the driver on tx, before it has been
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marked as associated. Since ath9k_sta_state was initializing the entry
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too late, it resulted in some spurious crashes.
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Fixes: df3c6eb34da5 ("ath9k: Use sta_state() callback")
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Cc: stable@vger.kernel.org
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/wireless/ath/ath9k/main.c
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+++ b/drivers/net/wireless/ath/ath9k/main.c
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@@ -1563,13 +1563,13 @@ static int ath9k_sta_state(struct ieee80
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struct ath_common *common = ath9k_hw_common(sc->sc_ah);
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int ret = 0;
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- if (old_state == IEEE80211_STA_AUTH &&
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- new_state == IEEE80211_STA_ASSOC) {
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+ if (old_state == IEEE80211_STA_NOTEXIST &&
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+ new_state == IEEE80211_STA_NONE) {
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ret = ath9k_sta_add(hw, vif, sta);
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ath_dbg(common, CONFIG,
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"Add station: %pM\n", sta->addr);
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- } else if (old_state == IEEE80211_STA_ASSOC &&
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- new_state == IEEE80211_STA_AUTH) {
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+ } else if (old_state == IEEE80211_STA_NONE &&
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+ new_state == IEEE80211_STA_NOTEXIST) {
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ret = ath9k_sta_remove(hw, vif, sta);
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ath_dbg(common, CONFIG,
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"Remove station: %pM\n", sta->addr);
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