1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 16851cb109a6..a4cd1617092b 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -908,12 +908,15 @@ static bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan)
         int i;
         bool restore;
 
-        if (!(ah->caps.hw_caps & ATH9K_HW_CAP_RTT) || !ah->caldata)
+        if (!ah->caldata)
                 return false;
 
         hist = &ah->caldata->rtt_hist;
+        if (!hist->num_readings)
+                return false;
+
         ar9003_hw_rtt_enable(ah);
-        ar9003_hw_rtt_set_mask(ah, 0x10);
+        ar9003_hw_rtt_set_mask(ah, 0x00);
         for (i = 0; i < AR9300_MAX_CHAINS; i++) {
                 if (!(ah->rxchainmask & (1 << i)))
                         continue;
@@ -1070,6 +1073,7 @@ skip_tx_iqcal:
                 if (is_reusable && (hist->num_readings < RTT_HIST_MAX)) {
                         u32 *table;
 
+                        hist->num_readings++;
                         for (i = 0; i < AR9300_MAX_CHAINS; i++) {
                                 if (!(ah->rxchainmask & (1 << i)))
                                         continue;