can: move can_stats.bus_off++ from can_bus_off into can_change_state

In order to be able to move the stats increment from can_bus_off() into
can_change_state(), the increment had to be moved back into code that was using
can_bus_off() but not can_change_state().

As a side-effect, this patch fixes the following bugs:
 * Redundant call to can_bus_off() in c_can.
 * Bus-off counted twice in xilinx_can.

Signed-off-by: Andri Yngvason <andri.yngvason@marel.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c
index c486fe510f37..c11d44984036 100644
--- a/drivers/net/can/cc770/cc770.c
+++ b/drivers/net/can/cc770/cc770.c
@@ -535,6 +535,7 @@ static int cc770_err(struct net_device *dev, u8 status)
                 cc770_write_reg(priv, control, CTRL_INI);
                 cf->can_id |= CAN_ERR_BUSOFF;
                 priv->can.state = CAN_STATE_BUS_OFF;
+                priv->can.can_stats.bus_off++;
                 can_bus_off(dev);
         } else if (status & STAT_WARN) {
                 cf->can_id |= CAN_ERR_CRTL;