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path: root/drivers/net/can/usb/ems_usb.c
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Diffstat (limited to 'drivers/net/can/usb/ems_usb.c')
-rw-r--r--drivers/net/can/usb/ems_usb.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index efbb05c71bf..11c87840cc0 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -767,6 +767,9 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
size_t size = CPC_HEADER_SIZE + CPC_MSG_HEADER_LEN
+ sizeof(struct cpc_can_msg);
+ if (can_dropped_invalid_skb(netdev, skb))
+ return NETDEV_TX_OK;
+
/* create a URB, and a buffer for it, and copy the data to the URB */
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
@@ -1019,8 +1022,7 @@ static int ems_usb_probe(struct usb_interface *intf,
dev->can.bittiming_const = &ems_usb_bittiming_const;
dev->can.do_set_bittiming = ems_usb_set_bittiming;
dev->can.do_set_mode = ems_usb_set_mode;
-
- netdev->flags |= IFF_ECHO; /* we support local echo */
+ dev->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES;
netdev->netdev_ops = &ems_usb_netdev_ops;