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From:   Navid Emamdoost <navid.emamdoost@gmail.com>
To:     Jakub Kicinski <kubakici@wp.pl>, Kalle Valo <kvalo@codeaurora.org>,
        "David S. Miller" <davem@davemloft.net>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Cc:     emamd001@umn.edu, Navid Emamdoost <navid.emamdoost@gmail.com>
Subject: [PATCH] mt7601u: add missing release on skb in mt7601u_mcu_msg_send
Date:   Sat, 18 Jul 2020 00:26:29 -0500
Message-Id: <20200718052630.11032-1-navid.emamdoost@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

In the implementation of mt7601u_mcu_msg_send(), skb is supposed to be
consumed on all execution paths. Release skb before returning if
test_bit() fails.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
 drivers/net/wireless/mediatek/mt7601u/mcu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt7601u/mcu.c b/drivers/net/wireless/mediatek/mt7601u/mcu.c
index af55ed82b96f..1b5cc271a9e1 100644
--- a/drivers/net/wireless/mediatek/mt7601u/mcu.c
+++ b/drivers/net/wireless/mediatek/mt7601u/mcu.c
@@ -116,8 +116,10 @@ mt7601u_mcu_msg_send(struct mt7601u_dev *dev, struct sk_buff *skb,
 	int sent, ret;
 	u8 seq = 0;
 
-	if (test_bit(MT7601U_STATE_REMOVED, &dev->state))
+	if (test_bit(MT7601U_STATE_REMOVED, &dev->state)) {
+		consume_skb(skb);
 		return 0;
+	}
 
 	mutex_lock(&dev->mcu.mutex);
 
-- 
2.17.1