[PATCH 15/24] fcoe: add check to fail gracefully in bonding mode

Robert Love
2009-09-18T22:50:25Z

From: john fastabend <john.r.fastabend@intel.com>

This patch adds a check to fail gracefully when the netdevice
is bonded. Previously, the error was detected but the stack
would continue to load. This resulted in a partially enabled
fcoe intance and errors when the fcoe instance was destroy.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---

drivers/scsi/fcoe/fcoe.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 0a3affd..d8a5169 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -266,6 +266,7 @@ static int fcoe_interface_setup(struct fcoe_interface *fcoe,
if ((netdev->priv_flags & IFF_MASTER_ALB) ||
(netdev->priv_flags & IFF_SLAVE_INACTIVE) ||
(netdev->priv_flags & IFF_MASTER_8023AD)) {
+ FCOE_NETDEV_DBG(netdev, "Bonded interfaces not supported\n");
return -EOPNOTSUPP;
}

@@ -323,6 +324,7 @@ static int fcoe_interface_setup(struct fcoe_interface *fcoe,
static struct fcoe_interface *fcoe_interface_create(struct net_device *netdev)
{
struct fcoe_interface *fcoe;
+ int err;

fcoe = kzalloc(sizeof(*fcoe), GFP_KERNEL);
if (!fcoe) {
@@ -341,7 +343,13 @@ static struct fcoe_interface *fcoe_interface_create(struct net_device *netdev)
fcoe->ctlr.update_mac = fcoe_update_src_mac;
fcoe->ctlr.get_src_addr = fcoe_get_src_mac;

- fcoe_interface_setup(fcoe, netdev);
+ err = fcoe_interface_setup(fcoe, netdev);
+ if (err) {
+ fcoe_ctlr_destroy(&fcoe->ctlr);
+ kfree(fcoe);
+ dev_put(netdev);
+ return NULL;
+ }

return fcoe;
}