[PATCH 4.19 100/287] can: kvaser_usb_leaf: do not report txerr and rxerr during bus-off

[Greg Kroah-Hartman]

From: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx>

[ Upstream commit a57732084e06791d37ea1ea447cca46220737abd ]

During bus off, the error count is greater than 255 and can not fit in
a u8.

Fixes: 7259124eac7d1 ("can: kvaser_usb: Split driver into kvaser_usb_core.c and kvaser_usb_leaf.c")
Link: https://lore.kernel.org/all/20220719143550.3681-9-mailhol.vincent@xxxxxxxxxx
CC: Jimmy Assarsson <extja@xxxxxxxxxx>
Signed-off-by: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
index 0e0403dd0550..5e281249ad5f 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
@@ -857,8 +857,10 @@ static void kvaser_usb_leaf_rx_error(const struct kvaser_usb *dev,
 		break;
 	}
 
-	cf->data[6] = es->txerr;
-	cf->data[7] = es->rxerr;
+	if (new_state != CAN_STATE_BUS_OFF) {
+		cf->data[6] = es->txerr;
+		cf->data[7] = es->rxerr;
+	}
 
 	stats->rx_packets++;
 	stats->rx_bytes += cf->can_dlc;
-- 
2.35.1