diff options
| author | Anssi Hannula <anssi.hannula@bitwise.fi> | 2022-10-10 20:52:33 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2022-10-26 10:18:37 +0200 |
| commit | a11249acf802341294557895d8e5f6aef080253f (patch) | |
| tree | c50cbb7e7c5d7f0cb97b83234a825140d4be490d /drivers/net/can/usb/kvaser_usb | |
| parent | 8d21f5927ae604881f98587fabf6753f88730968 (diff) | |
can: kvaser_usb_leaf: Fix wrong CAN state after stopping
0bfd:0124 Kvaser Mini PCI Express 2xHS FW 4.18.778 sends a
CMD_CHIP_STATE_EVENT indicating bus-off after stopping the device,
causing a stopped device to appear as CAN_STATE_BUS_OFF instead of
CAN_STATE_STOPPED.
Fix that by not handling error events on stopped devices.
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/20221010185237.319219-8-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/usb/kvaser_usb')
| -rw-r--r-- | drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 4 |
1 files changed, 4 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 12f3d023b72b..d6ca2ac8626c 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -1045,6 +1045,10 @@ static void kvaser_usb_leaf_rx_error(const struct kvaser_usb *dev, leaf = priv->sub_priv; stats = &priv->netdev->stats; + /* Ignore e.g. state change to bus-off reported just after stopping */ + if (!netif_running(priv->netdev)) + return; + /* Update all of the CAN interface's state and error counters before * trying any memory allocation that can actually fail with -ENOMEM. * |