bonding: Improve syslog message at device creation time

When the bonding module is loaded, it creates bond0 by default.
Then, when attempting to create bond0, the following messages
are printed to syslog:

    kernel: bonding: bond0 is being created...
    kernel: bonding: Bond creation failed.

Which seems to indicate a problem, when in reality there is no
problem.  Since the actual error code is passed down from bond_create,
make use of it to print a bit less ominous message:

    kernel: bonding: bond0 is being created...
    kernel: bond0 already exists.

Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 72bb0f6cc9bf39289ec7b9c0185f9d3ded6a4af8..e718144c5cfa774a6777e1540c608a36bac1d813 100644 (file)
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -118,7 +118,10 @@ static ssize_t bonding_store_bonds(struct class *cls,
                pr_info("%s is being created...\n", ifname);
                rv = bond_create(net, ifname);
                if (rv) {
-                       pr_info("Bond creation failed.\n");
+                       if (rv == -EEXIST)
+                               pr_info("%s already exists.\n", ifname);
+                       else
+                               pr_info("%s creation failed.\n", ifname);
                        res = rv;
                }
        } else if (command[0] == '-') {