From: Jimmy Assarsson <extja@xxxxxxxxxx> commit bf7ac55e991ca177f1ac16be51152f1ef291a4df upstream. The listen-only bit was never cleared, causing the controller to always use listen-only mode, if previously set. Fixes: 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices") Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Jimmy Assarsson <extja@xxxxxxxxxx> Link: https://lore.kernel.org/r/20230516134318.104279-3-extja@xxxxxxxxxx Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/can/kvaser_pciefd.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -561,6 +561,8 @@ static void kvaser_pciefd_setup_controll if (can->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) mode |= KVASER_PCIEFD_KCAN_MODE_LOM; + else + mode &= ~KVASER_PCIEFD_KCAN_MODE_LOM; mode |= KVASER_PCIEFD_KCAN_MODE_EEN; mode |= KVASER_PCIEFD_KCAN_MODE_EPEN;