From: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Date: Sat, 13 Jun 2009 09:20:25 +0000 (+0530)
Subject: ath9k: Make sure we have current channel in ah_curchan before rf disable/enable
X-Git-Tag: firefly_0821_release~13604^2~75^2~9
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=159cd468bc885f7a2fbc75bbfe782782e52ef9c9;p=firefly-linux-kernel-4.4.55.git

ath9k: Make sure we have current channel in ah_curchan before rf disable/enable

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 89bf07e66d10..6516a426f6ce 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1123,6 +1123,9 @@ void ath_radio_enable(struct ath_softc *sc)
 	ath9k_ps_wakeup(sc);
 	ath9k_hw_configpcipowersave(ah, 0);
 
+	if (!ah->curchan)
+		ah->curchan = ath_get_curchannel(sc, sc->hw);
+
 	spin_lock_bh(&sc->sc_resetlock);
 	r = ath9k_hw_reset(ah, ah->curchan, false);
 	if (r) {
@@ -1175,6 +1178,9 @@ void ath_radio_disable(struct ath_softc *sc)
 	ath_stoprecv(sc);		/* turn off frame recv */
 	ath_flushrecv(sc);		/* flush recv queue */
 
+	if (!ah->curchan)
+		ah->curchan = ath_get_curchannel(sc, sc->hw);
+
 	spin_lock_bh(&sc->sc_resetlock);
 	r = ath9k_hw_reset(ah, ah->curchan, false);
 	if (r) {