[PATCH 4.17 13/31] can: ems_usb: Fix memory leak on ems_usb_disconnect()

[Greg Kroah-Hartman]

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Anton Vasilyev <vasil...@ispras.ru>

commit 72c05f32f4a5055c9c8fe889bb6903ec959c0aad upstream.

ems_usb_probe() allocates memory for dev->tx_msg_buffer, but there
is no its deallocation in ems_usb_disconnect().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasil...@ispras.ru>
Cc: <sta...@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/net/can/usb/ems_usb.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -1072,6 +1072,7 @@ static void ems_usb_disconnect(struct us
                usb_free_urb(dev->intr_urb);
 
                kfree(dev->intr_in_buffer);
+               kfree(dev->tx_msg_buffer);
        }
 }