linux-kernel - [PATCH AUTOSEL 5.8 085/101] Bluetooth: btusb: Fix memleak in btusb_mtk_submit_wmt_recv

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Message-Id: <20201018192026.4053674-85-sashal@kernel.org>
Date:   Sun, 18 Oct 2020 15:20:10 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Dinghao Liu <dinghao.liu@....edu.cn>,
        Marcel Holtmann <marcel@...tmann.org>,
        Sasha Levin <sashal@...nel.org>,
        linux-bluetooth@...r.kernel.org
Subject: [PATCH AUTOSEL 5.8 085/101] Bluetooth: btusb: Fix memleak in btusb_mtk_submit_wmt_recv_urb

From: Dinghao Liu <dinghao.liu@....edu.cn>

[ Upstream commit d33fe77bdf75806d785dabf90d21d962122e5296 ]

When kmalloc() on buf fails, urb should be freed just like
when kmalloc() on dr fails.

Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
Signed-off-by: Marcel Holtmann <marcel@...tmann.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/bluetooth/btusb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index a5fef9aa419fd..91a0c84d55c97 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2849,6 +2849,7 @@ static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
 	buf = kmalloc(size, GFP_KERNEL);
 	if (!buf) {
 		kfree(dr);
+		usb_free_urb(urb);
 		return -ENOMEM;
 	}
 
-- 
2.25.1