1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ath5k/qcu.c b/drivers/net/wireless/ath/ath5k/qcu.c
index 3343fb9e4940..b18c5021aac3 100644
--- a/drivers/net/wireless/ath/ath5k/qcu.c
+++ b/drivers/net/wireless/ath/ath5k/qcu.c
@@ -519,7 +519,7 @@ int ath5k_hw_set_ifs_intervals(struct ath5k_hw *ah, unsigned int slot_time)
                 return -EINVAL;
 
         sifs = ath5k_hw_get_default_sifs(ah);
-        sifs_clock = ath5k_hw_htoclock(ah, sifs);
+        sifs_clock = ath5k_hw_htoclock(ah, sifs - 2);
 
         /* EIFS
          * Txtime of ack at lowest rate + SIFS + DIFS
@@ -550,7 +550,7 @@ int ath5k_hw_set_ifs_intervals(struct ath5k_hw *ah, unsigned int slot_time)
         else
                 rate = &sc->sbands[IEEE80211_BAND_2GHZ].bitrates[0];
 
-        ack_tx_time = ath5k_hw_get_frame_duration(ah, 10, rate);
+        ack_tx_time = ath5k_hw_get_frame_duration(ah, 10, rate, false);
 
         /* ack_tx_time includes an SIFS already */
         eifs = ack_tx_time + sifs + 2 * slot_time;