diff options
Diffstat (limited to 'drivers/net/can/dev/netlink.c')
| -rw-r--r-- | drivers/net/can/dev/netlink.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/can/dev/netlink.c b/drivers/net/can/dev/netlink.c index a36842ace084..f0e3f0d538fb 100644 --- a/drivers/net/can/dev/netlink.c +++ b/drivers/net/can/dev/netlink.c @@ -285,6 +285,12 @@ static int can_changelink(struct net_device *dev, struct nlattr *tb[], } if (data[IFLA_CAN_RESTART_MS]) { + if (!priv->do_set_mode) { + NL_SET_ERR_MSG(extack, + "Device doesn't support restart from Bus Off"); + return -EOPNOTSUPP; + } + /* Do not allow changing restart delay while running */ if (dev->flags & IFF_UP) return -EBUSY; @@ -292,6 +298,12 @@ static int can_changelink(struct net_device *dev, struct nlattr *tb[], } if (data[IFLA_CAN_RESTART]) { + if (!priv->do_set_mode) { + NL_SET_ERR_MSG(extack, + "Device doesn't support restart from Bus Off"); + return -EOPNOTSUPP; + } + /* Do not allow a restart while not running */ if (!(dev->flags & IFF_UP)) return -EINVAL; |