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From: Wenwen Wang <wenwen@cs.uga.edu>
To: Wenwen Wang <wenwen@cs.uga.edu>
Cc: Kalle Valo <kvalo@codeaurora.org>,
	"David S. Miller" <davem@davemloft.net>,
	ath10k@lists.infradead.org (open list:QUALCOMM ATHEROS ATH10K
	WIRELESS DRIVER),
	linux-wireless@vger.kernel.org (open list:NETWORKING DRIVERS
	(WIRELESS)),
	netdev@vger.kernel.org (open list:NETWORKING DRIVERS),
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH] ath10k: add cleanup in ath10k_sta_state()
Date: Thu, 15 Aug 2019 16:04:31 -0500
Message-ID: <1565903072-3948-1-git-send-email-wenwen@cs.uga.edu> (raw)

If 'sta->tdls' is false, no cleanup is executed, leading to memory/resource
leaks, e.g., 'arsta->tx_stats'. To fix this issue, perform cleanup before
go to the 'exit' label.

Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
---
 drivers/net/wireless/ath/ath10k/mac.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 0606416..f99e6d2 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -6548,8 +6548,12 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 
 		spin_unlock_bh(&ar->data_lock);
 
-		if (!sta->tdls)
+		if (!sta->tdls) {
+			ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
+			ath10k_mac_dec_num_stations(arvif, sta);
+			kfree(arsta->tx_stats);
 			goto exit;
+		}
 
 		ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
 						      WMI_TDLS_ENABLE_ACTIVE);
-- 
2.7.4


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