diff options
| -rw-r--r-- | net/bridge/br_sysfs_br.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c index 4f42263e0a8a..88f43003b193 100644 --- a/net/bridge/br_sysfs_br.c +++ b/net/bridge/br_sysfs_br.c @@ -147,20 +147,26 @@ static ssize_t show_stp_state(struct device *d, return sprintf(buf, "%d\n", br->stp_enabled); } -static void set_stp_state(struct net_bridge *br, unsigned long val) -{ - rtnl_lock(); - spin_unlock_bh(&br->lock); - br_stp_set_enabled(br, val); - spin_lock_bh(&br->lock); - rtnl_unlock(); -} static ssize_t store_stp_state(struct device *d, struct device_attribute *attr, const char *buf, size_t len) { - return store_bridge_parm(d, buf, len, set_stp_state); + struct net_bridge *br = to_bridge(d); + char *endp; + unsigned long val; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + val = simple_strtoul(buf, &endp, 0); + if (endp == buf) + return -EINVAL; + + rtnl_lock(); + br_stp_set_enabled(br, val); + rtnl_unlock(); + } static DEVICE_ATTR(stp_state, S_IRUGO | S_IWUSR, show_stp_state, store_stp_state); |