From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit 164d7cb2d5a30f1b3a5ab4fab1a27731fb1494a8 ]
During bus off, the error count is greater than 255 and can not fit in a u8.
Fixes: 215db1856e83 ("can: sja1000: Consolidate and unify state change handling") Link: https://lore.kernel.org/all/20220719143550.3681-4-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/sja1000/sja1000.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 3fad54646746..aae2677e24f9 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -404,9 +404,6 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) txerr = priv->read_reg(priv, SJA1000_TXERR); rxerr = priv->read_reg(priv, SJA1000_RXERR);
- cf->data[6] = txerr; - cf->data[7] = rxerr; - if (isrc & IRQ_DOI) { /* data overrun interrupt */ netdev_dbg(dev, "data overrun interrupt\n"); @@ -428,6 +425,10 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) else state = CAN_STATE_ERROR_ACTIVE; } + if (state != CAN_STATE_BUS_OFF) { + cf->data[6] = txerr; + cf->data[7] = rxerr; + } if (isrc & IRQ_BEI) { /* bus error interrupt */ priv->can.can_stats.bus_error++;