bonding: add lp_interval attribute netlink support

[firefly-linux-kernel-4.4.55.git] / drivers / net / bonding / bond_sysfs.c

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 359adda17dba858ccc4256c2e663747fbe024b3c..c4cdbf6469ae6d420132eab7fc4aeea2b233dfec 100644 (file)
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -1369,24 +1369,22 @@ static ssize_t bonding_store_lp_interval(struct device *d,
                                         const char *buf, size_t count)
 {
        struct bonding *bond = to_bond(d);
-       int new_value, ret = count;
+       int new_value, ret;
 
        if (sscanf(buf, "%d", &new_value) != 1) {
                pr_err("%s: no lp interval value specified.\n",
                        bond->dev->name);
-               ret = -EINVAL;
-               goto out;
+               return -EINVAL;
        }
 
-       if (new_value <= 0) {
-               pr_err ("%s: lp_interval must be between 1 and %d\n",
-                       bond->dev->name, INT_MAX);
-               ret = -EINVAL;
-               goto out;
-       }
+       if (!rtnl_trylock())
+               return restart_syscall();
 
-       bond->params.lp_interval = new_value;
-out:
+       ret = bond_option_lp_interval_set(bond, new_value);
+       if (!ret)
+               ret = count;
+
+       rtnl_unlock();
        return ret;
 }