diff options
| author | Hangyu Hua <hbh25y@gmail.com> | 2022-02-28 11:36:39 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:22:53 +0300 |
| commit | 459b19f42fd5e031e743dfa119f44aba0b62ff97 (patch) | |
| tree | c2f01a7088a362e5d07a61383cbafbb5c0bba7fe | |
| parent | 31d7d7f35045e52c0efe4bbf5beeea02dba6803b (diff) | |
| download | linux-459b19f42fd5e031e743dfa119f44aba0b62ff97.tar.xz | |
can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path
commit c70222752228a62135cee3409dccefd494a24646 upstream.
There is no need to call dev_kfree_skb() when usb_submit_urb() fails
beacause can_put_echo_skb() deletes the original skb and
can_free_echo_skb() deletes the cloned skb.
Link: https://lore.kernel.org/all/20220228083639.38183-1-hbh25y@gmail.com
Fixes: 702171adeed3 ("ems_usb: Added support for EMS CPC-USB/ARM7 CAN/USB interface")
Cc: stable@vger.kernel.org
Cc: Sebastian Haas <haas@ems-wuensche.com>
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/can/usb/ems_usb.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 2b5302e72435..c9552846fe25 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -823,7 +823,6 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne usb_unanchor_urb(urb); usb_free_coherent(dev->udev, size, buf, urb->transfer_dma); - dev_kfree_skb(skb); atomic_dec(&dev->active_tx_urbs); |