linux-kernel - [PATCH 6.0 706/862] wifi: rtw89: free unused skb to prevent memory leak

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Message-Id: <20221019083321.171162167@linuxfoundation.org>
Date:   Wed, 19 Oct 2022 10:33:13 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Po-Hao Huang <phhuang@...ltek.com>,
        Ping-Ke Shih <pkshih@...ltek.com>,
        Kalle Valo <kvalo@...nel.org>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.0 706/862] wifi: rtw89: free unused skb to prevent memory leak

From: Po-Hao Huang <phhuang@...ltek.com>

[ Upstream commit eae672f386049146058b9e5d3d33e9e4af9dca1d ]

This avoid potential memory leak under power saving mode.

Signed-off-by: Po-Hao Huang <phhuang@...ltek.com>
Signed-off-by: Ping-Ke Shih <pkshih@...ltek.com>
Signed-off-by: Kalle Valo <kvalo@...nel.org>
Link: https://lore.kernel.org/r/20220916033811.13862-6-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/realtek/rtw89/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index a5880a54812e..8b338e5ce364 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -872,6 +872,7 @@ int rtw89_h2c_tx(struct rtw89_dev *rtwdev,
 		rtw89_debug(rtwdev, RTW89_DBG_FW,
 			    "ignore h2c due to power is off with firmware state=%d\n",
 			    test_bit(RTW89_FLAG_FW_RDY, rtwdev->flags));
+		dev_kfree_skb(skb);
 		return 0;
 	}
 
-- 
2.35.1