From: Jouni Malinen Date: Mon, 14 Dec 2020 17:21:15 +0000 (+0200) Subject: ath9k: Clear key cache explicitly on disabling hardware X-Git-Tag: v5.12-rc1~200^2~147^2~25^2~6 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=73488cb2fa3bb1ef9f6cf0d757f76958bd4deaca;p=thirdparty%2Flinux.git ath9k: Clear key cache explicitly on disabling hardware Now that ath/key.c may not be explicitly clearing keys from the key cache, clear all key cache entries when disabling hardware to make sure no keys are left behind beyond this point. Signed-off-by: Jouni Malinen Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20201214172118.18100-3-jouni@codeaurora.org --- diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index caebe3fd6869e..10b87aa1d2895 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -894,6 +894,11 @@ static void ath9k_stop(struct ieee80211_hw *hw) spin_unlock_bh(&sc->sc_pcu_lock); + /* Clear key cache entries explicitly to get rid of any potentially + * remaining keys. + */ + ath9k_cmn_init_crypto(sc->sc_ah); + ath9k_ps_restore(sc); sc->ps_idle = prev_idle;