From: Vasanthakumar <vasanth@atheros.com>
Date: Mon, 1 Feb 2010 13:19:07 +0000 (+0530)
Subject: mac80211: Don't call rate control when HW handles it
X-Git-Tag: v2.6.34-rc1~233^2~49^2~118
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3c384053ce4cb1949f5575c28e30e6ceea8cb39b;p=profile%2Fivi%2Fkernel-x86-ivi.git

mac80211: Don't call rate control when HW handles it

Rate control should not be called to update the tx status
when HW does the RC.

Signed-off-by: Vasanthakumar <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index 669dddd..998cf7a 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -44,6 +44,10 @@ static inline void rate_control_tx_status(struct ieee80211_local *local,
 	struct rate_control_ref *ref = local->rate_ctrl;
 	struct ieee80211_sta *ista = &sta->sta;
 	void *priv_sta = sta->rate_ctrl_priv;
+
+	if (!ref)
+		return;
+
 	ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
 }