From: Stefano Brivio <stefano.brivio@polimi.it>
Date: Sun, 23 Dec 2007 03:43:57 +0000 (+0100)
Subject: rc80211-pid: fix sta_info refcounting
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=13e05aa631b195ce30737b320da17e7542c82ead;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

rc80211-pid: fix sta_info refcounting

Fix a bug which caused uncorrect refcounting of PHYs in mac80211. Thanks to
Johannes Berg for spotting this out.

Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 3e26280d3142..da3529017da1 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -254,7 +254,7 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
 	/* Ignore all frames that were sent with a different rate than the rate
 	 * we currently advise mac80211 to use. */
 	if (status->control.rate != &local->oper_hw_mode->rates[sta->txrate])
-		return;
+		goto ignore;
 
 	spinfo = sta->rate_ctrl_priv;
 	spinfo->tx_num_xmit++;
@@ -295,6 +295,7 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
 	if (time_after(jiffies, spinfo->last_sample + period))
 		rate_control_pid_sample(pinfo, local, sta);
 
+ignore:
 	sta_info_put(sta);
 }