linux-kernel - [PATCH] Bluetooth: btusb: Fix memleak in btusb_mtk_submit_wmt_recv

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Message-Id: <20200823074421.20769-1-dinghao.liu@zju.edu.cn>
Date:   Sun, 23 Aug 2020 15:44:21 +0800
From:   Dinghao Liu <dinghao.liu@....edu.cn>
To:     dinghao.liu@....edu.cn, kjlu@....edu
Cc:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] Bluetooth: btusb: Fix memleak in btusb_mtk_submit_wmt_recv_urb

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>
---
 drivers/bluetooth/btusb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 8d2608ddfd08..f88968bcdd6a 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2896,6 +2896,7 @@ 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;
 	}
 
-- 
2.17.1