[PATCH 4.14 013/164] can: kvaser_usb: ratelimit errors if incomplete messages are received

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jimmy Assarsson <jimmyassars...@gmail.com>

commit 8bd13bd522ff7dfa0eb371921aeb417155f7a3be upstream.

Avoid flooding the kernel log with "Formate error", if incomplete message
are received.

Signed-off-by: Jimmy Assarsson <jimmyassars...@gmail.com>
Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/net/can/usb/kvaser_usb.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -609,8 +609,8 @@ static int kvaser_usb_wait_msg(const str
                        }
 
                        if (pos + tmp->len > actual_len) {
-                               dev_err(dev->udev->dev.parent,
-                                       "Format error\n");
+                               dev_err_ratelimited(dev->udev->dev.parent,
+                                                   "Format error\n");
                                break;
                        }
 
@@ -1353,7 +1353,8 @@ static void kvaser_usb_read_bulk_callbac
                }
 
                if (pos + msg->len > urb->actual_length) {
-                       dev_err(dev->udev->dev.parent, "Format error\n");
+                       dev_err_ratelimited(dev->udev->dev.parent,
+                                           "Format error\n");
                        break;
                }