diff options
| author | Anssi Hannula <anssi.hannula@bitwise.fi> | 2022-10-10 18:08:29 +0300 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2022-10-11 09:50:44 +0300 |
| commit | 0be1a655fe68c8e6dcadbcbddb69cf2fb29881f5 (patch) | |
| tree | 1b648f2929c7bcd472d5840b9370ad24e6862c8c /drivers/net | |
| parent | 455561fb618fde40558776b5b8435f9420f335db (diff) | |
| download | linux-0be1a655fe68c8e6dcadbcbddb69cf2fb29881f5.tar.xz | |
can: kvaser_usb_leaf: Fix CAN state after restart
can_restart() expects CMD_START_CHIP to set the error state to
ERROR_ACTIVE as it calls netif_carrier_on() immediately afterwards.
Otherwise the user may immediately trigger restart again and hit a
BUG_ON() in can_restart().
Fix kvaser_usb_leaf set_mode(CMD_START_CHIP) to set the expected state.
Cc: stable@vger.kernel.org
Fixes: 080f40a6fa28 ("can: kvaser_usb: Add support for Kvaser CAN/USB devices")
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://lore.kernel.org/all/20221010150829.199676-5-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 2 |
1 files changed, 2 insertions, 0 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 59c220ef3049..50f2ac8319ff 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -1431,6 +1431,8 @@ static int kvaser_usb_leaf_set_mode(struct net_device *netdev, err = kvaser_usb_leaf_simple_cmd_async(priv, CMD_START_CHIP); if (err) return err; + + priv->can.state = CAN_STATE_ERROR_ACTIVE; break; default: return -EOPNOTSUPP; |