2 files changed, 2 insertions, 2 deletions

diff --git a/net/mac80211/rc80211_pid.h b/net/mac80211/rc80211_pid.h
index 425eb708182a..81aa4ea19958 100644
--- a/net/mac80211/rc80211_pid.h
+++ b/net/mac80211/rc80211_pid.h
@@ -38,7 +38,7 @@
  * link quality is good, the controller will fail to adjust failed frames
  * percentage to the target. This is intentional.
  */
-#define RC_PID_TARGET_PF (11 << RC_PID_ARITH_SHIFT)
+#define RC_PID_TARGET_PF 11
 
 /* Rate behaviour normalization quantity over time. */
 #define RC_PID_NORM_OFFSET 3
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 631e46888267..b84e51480c84 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -210,7 +210,7 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
         rate_control_pid_normalize(pinfo, mode->num_rates);
 
         /* Compute the proportional, integral and derivative errors. */
-        err_prop = pinfo->target - pf;
+        err_prop = (pinfo->target << RC_PID_ARITH_SHIFT) - pf;
 
         err_avg = spinfo->err_avg_sc >> pinfo->smoothing_shift;
         spinfo->err_avg_sc = spinfo->err_avg_sc - err_avg + err_prop;