diff options
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/c_can/c_can.c | 6 | ||||
| -rw-r--r-- | drivers/net/can/usb/kvaser_usb.c | 20 |
2 files changed, 16 insertions, 10 deletions
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index a668cd491cb3..e3fc07cf2f62 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -814,9 +814,6 @@ static int c_can_do_rx_poll(struct net_device *dev, int quota) msg_ctrl_save = priv->read_reg(priv, C_CAN_IFACE(MSGCTRL_REG, 0)); - if (msg_ctrl_save & IF_MCONT_EOB) - return num_rx_pkts; - if (msg_ctrl_save & IF_MCONT_MSGLST) { c_can_handle_lost_msg_obj(dev, 0, msg_obj); num_rx_pkts++; @@ -824,6 +821,9 @@ static int c_can_do_rx_poll(struct net_device *dev, int quota) continue; } + if (msg_ctrl_save & IF_MCONT_EOB) + return num_rx_pkts; + if (!(msg_ctrl_save & IF_MCONT_NEWDAT)) continue; diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c index 3b9546588240..4b2d5ed62b11 100644 --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -1544,9 +1544,9 @@ static int kvaser_usb_init_one(struct usb_interface *intf, return 0; } -static void kvaser_usb_get_endpoints(const struct usb_interface *intf, - struct usb_endpoint_descriptor **in, - struct usb_endpoint_descriptor **out) +static int kvaser_usb_get_endpoints(const struct usb_interface *intf, + struct usb_endpoint_descriptor **in, + struct usb_endpoint_descriptor **out) { const struct usb_host_interface *iface_desc; struct usb_endpoint_descriptor *endpoint; @@ -1557,12 +1557,18 @@ static void kvaser_usb_get_endpoints(const struct usb_interface *intf, for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { endpoint = &iface_desc->endpoint[i].desc; - if (usb_endpoint_is_bulk_in(endpoint)) + if (!*in && usb_endpoint_is_bulk_in(endpoint)) *in = endpoint; - if (usb_endpoint_is_bulk_out(endpoint)) + if (!*out && usb_endpoint_is_bulk_out(endpoint)) *out = endpoint; + + /* use first bulk endpoint for in and out */ + if (*in && *out) + return 0; } + + return -ENODEV; } static int kvaser_usb_probe(struct usb_interface *intf, @@ -1576,8 +1582,8 @@ static int kvaser_usb_probe(struct usb_interface *intf, if (!dev) return -ENOMEM; - kvaser_usb_get_endpoints(intf, &dev->bulk_in, &dev->bulk_out); - if (!dev->bulk_in || !dev->bulk_out) { + err = kvaser_usb_get_endpoints(intf, &dev->bulk_in, &dev->bulk_out); + if (err) { dev_err(&intf->dev, "Cannot get usb endpoint(s)"); return err; } |