Patch "can: kvaser_usb: ratelimit errors if incomplete messages are received" has been added to the 3.18-stable tree

Patch "can: kvaser_usb: ratelimit errors if incomplete messages are received" has been added to the 3.18-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    can: kvaser_usb: ratelimit errors if incomplete messages are received

to the 3.18-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     can-kvaser_usb-ratelimit-errors-if-incomplete-messages-are-received.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 8bd13bd522ff7dfa0eb371921aeb417155f7a3be Mon Sep 17 00:00:00 2001
From: Jimmy Assarsson <jimmyassarsson@gmail.com>
Date: Tue, 21 Nov 2017 08:22:28 +0100
Subject: can: kvaser_usb: ratelimit errors if incomplete messages are received

From: Jimmy Assarsson <jimmyassarsson@gmail.com>

commit 8bd13bd522ff7dfa0eb371921aeb417155f7a3be upstream.

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

Signed-off-by: Jimmy Assarsson <jimmyassarsson@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@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
@@ -415,8 +415,8 @@ 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;
 			}
 
@@ -1007,7 +1007,8 @@ 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;
 		}
 


Patches currently in stable-queue which might be from jimmyassarsson@gmail.com are

queue-3.18/can-kvaser_usb-ratelimit-errors-if-incomplete-messages-are-received.patch
queue-3.18/can-kvaser_usb-free-buf-in-error-paths.patch
queue-3.18/can-kvaser_usb-fix-comparison-bug-in-kvaser_usb_read_bulk_callback.patch