diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index a1dc9b86c2d1c8f7547ad1a426d3ac7ccca4e64d..0cb79bc067818facee2d6736e92ab62dd372068d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -1263,17 +1263,25 @@ int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 }
 
 static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm,
-				   struct ieee80211_vif *csa_vif, u32 gp2)
+				   struct ieee80211_vif *csa_vif, u32 gp2,
+				   bool tx_success)
 {
 	struct iwl_mvm_vif *mvmvif =
 			iwl_mvm_vif_from_mac80211(csa_vif);
 
+	/* Don't start to countdown from a failed beacon */
+	if (!tx_success && !mvmvif->csa_countdown)
+		return;
+
+	mvmvif->csa_countdown = true;
+
 	if (!ieee80211_csa_is_complete(csa_vif)) {
 		int c = ieee80211_csa_update_counter(csa_vif);
 
 		iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif);
 		if (csa_vif->p2p &&
-		    !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2) {
+		    !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2 &&
+		    tx_success) {
 			u32 rel_time = (c + 1) *
 				       csa_vif->bss_conf.beacon_int -
 				       IWL_MVM_CHANNEL_SWITCH_TIME_GO;
@@ -1300,6 +1308,7 @@ int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
 	struct ieee80211_vif *csa_vif;
 	struct ieee80211_vif *tx_blocked_vif;
 	u64 tsf;
+	u16 status;
 
 	lockdep_assert_held(&mvm->mutex);
 
@@ -1316,18 +1325,18 @@ int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
 		tsf = le64_to_cpu(beacon->tsf);
 	}
 
+	status = le16_to_cpu(beacon_notify_hdr->status.status) & TX_STATUS_MSK;
 	IWL_DEBUG_RX(mvm,
 		     "beacon status %#x retries:%d tsf:0x%16llX gp2:0x%X rate:%d\n",
-		     le16_to_cpu(beacon_notify_hdr->status.status) &
-								TX_STATUS_MSK,
-		     beacon_notify_hdr->failure_frame, tsf,
+		     status, beacon_notify_hdr->failure_frame, tsf,
 		     mvm->ap_last_beacon_gp2,
 		     le32_to_cpu(beacon_notify_hdr->initial_rate));
 
 	csa_vif = rcu_dereference_protected(mvm->csa_vif,
 					    lockdep_is_held(&mvm->mutex));
 	if (unlikely(csa_vif && csa_vif->csa_active))
-		iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2);
+		iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2,
+				       (status == TX_STATUS_SUCCESS));
 
 	tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif,
 						lockdep_is_held(&mvm->mutex));
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 1d556173fcb66e5d2e22687042563668220b4e16..6098eafcf13a238131ade070c1cfbc2d82ba606d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -2909,6 +2909,8 @@ static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
 		if (!vif->csa_active || !mvmvif->ap_ibss_active)
 			goto out;
 
+		mvmvif->csa_countdown = false;
+
 		/* Set CS bit on all the stations */
 		iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
 
@@ -3164,6 +3166,7 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct ieee80211_vif *csa_vif;
+	struct iwl_mvm_vif *mvmvif;
 	int ret;
 
 	mutex_lock(&mvm->mutex);
@@ -3183,6 +3186,14 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
 		}
 
 		rcu_assign_pointer(mvm->csa_vif, vif);
+
+		mvmvif = iwl_mvm_vif_from_mac80211(vif);
+		if (WARN_ONCE(mvmvif->csa_countdown,
+			      "Previous CSA countdown didn't complete")) {
+			ret = -EBUSY;
+			goto out_unlock;
+		}
+
 		break;
 	default:
 		break;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 44625adae1c5cd0932e592cc2900e4ceef815f01..2c54c522b8c6b876847cecc55d505a848eaa6854 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -399,6 +399,9 @@ struct iwl_mvm_vif {
 
 	/* FW identified misbehaving AP */
 	u8 uapsd_misbehaving_bssid[ETH_ALEN];
+
+	/* Indicates that CSA countdown may be started */
+	bool csa_countdown;
 };
 
 static inline struct iwl_mvm_vif *