diff options
Diffstat (limited to 'drivers/net/bonding/bond_sysfs.c')
| -rw-r--r-- | drivers/net/bonding/bond_sysfs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 549742f23ad5..aef42f045320 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -318,6 +318,13 @@ static ssize_t bonding_store_mode(struct device *d, goto out; } + if (bond->slave_cnt > 0) { + pr_err("unable to update mode of %s because it has slaves.\n", + bond->dev->name); + ret = -EPERM; + goto out; + } + new_value = bond_parse_parm(buf, bond_mode_tbl); if (new_value < 0) { pr_err("%s: Ignoring invalid mode value %.*s.\n", |