[PATCH 4.14 011/164] can: kvaser_usb: free buf in error paths

[Greg Kroah-Hartman]

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

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

From: Jimmy Assarsson <jimmyassars...@gmail.com>

commit 435019b48033138581a6171093b181fc6b4d3d30 upstream.

The allocated buffer was not freed if usb_submit_urb() failed.

Signed-off-by: Jimmy Assarsson <jimmyassars...@gmail.com>
Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/net/can/usb/kvaser_usb.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -813,6 +813,7 @@ static int kvaser_usb_simple_msg_async(s
        if (err) {
                netdev_err(netdev, "Error transmitting URB\n");
                usb_unanchor_urb(urb);
+               kfree(buf);
                usb_free_urb(urb);
                return err;
        }
@@ -1768,6 +1769,7 @@ static netdev_tx_t kvaser_usb_start_xmit
                spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 
                usb_unanchor_urb(urb);
+               kfree(buf);
 
                stats->tx_dropped++;