2-4b8cb2915571@pengutronix.de Signed-off-by: Marc Kleine-Budde (cherry picked from commit 5a4391bdc6c8357242f62f22069c865b792406b3) Signed-off-by: Marc Kleine-Budde --- drivers/net/can/usb/esd_usb.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/usb/esd_usb.c b/drivers/net/can/usb/esd_usb.c index 03ad10b01867..fdf2136824b3 100644 --- a/drivers/net/can/usb/esd_usb.c +++ b/drivers/net/can/usb/esd_usb.c @@ -539,13 +539,20 @@ static void esd_usb_read_bulk_callback(struct urb *urb) urb->transfer_buffer, ESD_USB_RX_BUFFER_SIZE, esd_usb_read_bulk_callback, dev); + usb_anchor_urb(urb, &dev->rx_submitted); + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (!retval) + return; + + usb_unanchor_urb(urb); + if (retval == -ENODEV) { for (i = 0; i < dev->net_count; i++) { if (dev->nets[i]) netif_device_detach(dev->nets[i]->netdev); } - } else if (retval) { + } else { dev_err(dev->udev->dev.parent, "failed resubmitting read bulk urb: %d\n", retval); } -- 2.51.0[PATCH 6.12.y] can: esd_usb: esd_usb_read_bulk_callback(): fix URB memory leakMarc Kleine-Budde undefinedstable@vger.kernel.org undefined˘