1 files changed, 1 insertions, 1 deletions

diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 7c5142988bbb..6e5d68b4e427 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -418,7 +418,7 @@ minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband,
 
                         /* contention window */
                         tx_time_single += t_slot + min(cw, mp->cw_max);
-                        cw = (cw + 1) << 1;
+                        cw = (cw << 1) | 1;
 
                         tx_time += tx_time_single;
                         tx_time_cts += tx_time_single + mi->sp_ack_dur;