can: usb: etas_es58x: correctly anchor the urb in the read bulk callback

When submitting an urb, that is using the anchor pattern, it needs to be
anchored before submitting it otherwise it could be leaked if
usb_kill_anchored_urbs() is called.  This logic is correctly done
elsewhere in the driver, except in the read bulk callback so do that
here also.

Cc: Vincent Mailhol <mailhol@kernel.org>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: stable@kernel.org
Assisted-by: gkh_clanker_2000
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Vincent Mailhol <mailhol@kernel.org>
Tested-by: Vincent Mailhol <mailhol@kernel.org>
Link: https://patch.msgid.link/2026022320-poser-stiffly-9d84@gregkh
Fixes: 8537257 ("can: etas_es58x: add core support for ETAS ES58X CAN USB interfaces")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

Author: gregkh

drivers/net/can/usb/etas_es58x/es58x_core.c

@@ -1461,12 +1461,18 @@ static void es58x_read_bulk_callback(struct urb *urb)
 	}
 
  resubmit_urb:
+	usb_anchor_urb(urb, &es58x_dev->rx_urbs);
 	ret = usb_submit_urb(urb, GFP_ATOMIC);
+	if (!ret)
+		return;
+
+	usb_unanchor_urb(urb);
+
 	if (ret == -ENODEV) {
 		for (i = 0; i < es58x_dev->num_can_ch; i++)
 			if (es58x_dev->netdev[i])
 				netif_device_detach(es58x_dev->netdev[i]);
-	} else if (ret)
+	} else
 		dev_err_ratelimited(dev,
 				    "Failed resubmitting read bulk urb: %pe\n",
 				    ERR_PTR(ret));