scsi: bnx2fc: Fix NULL dereference in error handling

BugLink: https://bugs.launchpad.net/bugs/1811647

[ Upstream commit 9ae4f842 ]

If "interface" is NULL then we can't release it and trying to will only
lead to an Oops.

Fixes: aea71a02 ("[SCSI] bnx2fc: Introduce interface structure for each vlan interface")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

drivers/scsi/bnx2fc/bnx2fc_fcoe.c

@@ -2279,7 +2279,7 @@ static int _bnx2fc_create(struct net_device *netdev,
 	if (!interface) {
 		printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
 		rc = -ENOMEM;
-		goto ifput_err;
+		goto netdev_err;
 	}
 
 	if (netdev->priv_flags & IFF_802_1Q_VLAN) {