Subject: [PATCH 3/3] bonding: Improve syslog message at device creation time

From: Phil Oester <[email-masked]>
Date: Mon, 14 Mar 2011 09:22:06 -0700

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 <[email-masked]>
---
 drivers/net/bonding/bond_sysfs.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 72bb0f6..e718144 100644
--- 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] == '-') {
-- 
1.7.4