ath6kl: Make sure wiphy is registered before calling regulatory_hint()

As regulatory events are processed even before the wiphy is registered,
calling regulatory_hint() at early stage should be fixed.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath6kl/cfg80211.c

@@ -3097,12 +3097,16 @@ int ath6kl_cfg80211_init(struct ath6kl *ar)
 		return ret;
 	}
 
+	ar->wiphy_registered = true;
+
 	return 0;
 }
 
 void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
 {
 	wiphy_unregister(ar->wiphy);
+
+	ar->wiphy_registered = false;
 }
 
 struct ath6kl *ath6kl_cfg80211_create(void)

drivers/net/wireless/ath/ath6kl/core.h

@@ -666,6 +666,8 @@ struct ath6kl {
 
 	bool p2p;
 
+	bool wiphy_registered;
+
 #ifdef CONFIG_ATH6KL_DEBUG
 	struct {
 		struct sk_buff_head fwlog_queue;

drivers/net/wireless/ath/ath6kl/wmi.c

@@ -914,7 +914,7 @@ static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
 				regpair->regDmnEnum);
 	}
 
-	if (country) {
+	if (country && wmi->parent_dev->wiphy_registered) {
 		alpha2[0] = country->isoName[0];
 		alpha2[1] = country->isoName[1];