diff options
Diffstat (limited to 'drivers/net/bonding/bond_sysfs.c')
| -rw-r--r-- | drivers/net/bonding/bond_sysfs.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 98db8edd9c75..5555517284db 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -425,11 +425,15 @@ static ssize_t bonding_show_primary(struct device *d, struct device_attribute *attr, char *buf) { - int count = 0; struct bonding *bond = to_bond(d); + struct slave *primary; + int count = 0; - if (bond->primary_slave) - count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); + rcu_read_lock(); + primary = rcu_dereference(bond->primary_slave); + if (primary) + count = sprintf(buf, "%s\n", primary->dev->name); + rcu_read_unlock(); return count; } |