linux-kernel - [PATCH 5.15 326/779] mt76: mt76x02u: fix possible memory leak in __mt76x02u_mcu_send

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Message-Id: <20220815180351.223926042@linuxfoundation.org>
Date:   Mon, 15 Aug 2022 19:59:30 +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, Gergo Koteles <soyer@....hu>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Felix Fietkau <nbd@....name>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 326/779] mt76: mt76x02u: fix possible memory leak in __mt76x02u_mcu_send_msg

From: Lorenzo Bianconi <lorenzo@...nel.org>

[ Upstream commit cffd93411575afd987788e2ec3cb8eaff70f0215 ]

Free the skb if mt76u_bulk_msg fails in __mt76x02u_mcu_send_msg routine.

Fixes: 4c89ff2c74e39 ("mt76: split __mt76u_mcu_send_msg and mt76u_mcu_send_msg routines")
Co-developed-by: Gergo Koteles <soyer@....hu>
Signed-off-by: Gergo Koteles <soyer@....hu>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
Signed-off-by: Felix Fietkau <nbd@....name>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c
index 2953df7d8388..c6c16fe8ee85 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c
@@ -108,7 +108,7 @@ __mt76x02u_mcu_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
 	ret = mt76u_bulk_msg(dev, skb->data, skb->len, NULL, 500,
 			     MT_EP_OUT_INBAND_CMD);
 	if (ret)
-		return ret;
+		goto out;
 
 	if (wait_resp)
 		ret = mt76x02u_mcu_wait_resp(dev, seq);
-- 
2.35.1