[PATCH 4.19 094/287] can: pch_can: do not report txerr and rxerr during bus-off

[Greg Kroah-Hartman]

From: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx>

[ Upstream commit 3a5c7e4611ddcf0ef37a3a17296b964d986161a6 ]

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

Fixes: 0c78ab76a05c ("pch_can: Add setting TEC/REC statistics processing")
Link: https://lore.kernel.org/all/20220719143550.3681-2-mailhol.vincent@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/pch_can.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c
index ced11ea89269..3e1d71c70b0d 100644
--- a/drivers/net/can/pch_can.c
+++ b/drivers/net/can/pch_can.c
@@ -507,6 +507,9 @@ static void pch_can_error(struct net_device *ndev, u32 status)
 		cf->can_id |= CAN_ERR_BUSOFF;
 		priv->can.can_stats.bus_off++;
 		can_bus_off(ndev);
+	} else {
+		cf->data[6] = errc & PCH_TEC;
+		cf->data[7] = (errc & PCH_REC) >> 8;
 	}
 
 	errc = ioread32(&priv->regs->errc);
@@ -567,9 +570,6 @@ static void pch_can_error(struct net_device *ndev, u32 status)
 		break;
 	}
 
-	cf->data[6] = errc & PCH_TEC;
-	cf->data[7] = (errc & PCH_REC) >> 8;
-
 	priv->can.state = state;
 	netif_receive_skb(skb);
 
-- 
2.35.1