[PATCH 5.4 387/408] Bluetooth: btusb: Fix memleak in btusb_mtk_submit_wmt_recv_urb

Greg Kroah-Hartman
2020-10-27T14:47:51Z

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

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index f3f0529564da0..b326eeddaadf0 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2664,6 +2664,7 @@ 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