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| author | Hannes Reinecke <hare@suse.de> | 2017-09-15 13:12:12 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-09-15 15:43:29 -0400 |
| commit | 9eed785b02fec925fd6ed7272ad774a803647758 (patch) | |
| tree | 65c38289f36a359766d8f7aa71fa9769fedbae66 /drivers/scsi/fcoe/fcoe.c | |
| parent | 2a8ee61685a9fd7f054b0596865290baffe84c16 (diff) | |
| download | linux-9eed785b02fec925fd6ed7272ad774a803647758.tar.gz linux-9eed785b02fec925fd6ed7272ad774a803647758.tar.bz2 linux-9eed785b02fec925fd6ed7272ad774a803647758.zip | |
scsi: fcoe: move fcoe_interface_remove() out of fcoe_interface_cleanup()
This closes a possible race condition in _fcoe_create() where we drop
the rtnl_lock() before calling fcoe_interface_remove().
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/fcoe/fcoe.c')
| -rw-r--r-- | drivers/scsi/fcoe/fcoe.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 85f9a3eba387..135bdcfea7eb 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -501,11 +501,6 @@ static void fcoe_interface_cleanup(struct fcoe_interface *fcoe) struct net_device *netdev = fcoe->netdev; struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe); - rtnl_lock(); - if (!fcoe->removed) - fcoe_interface_remove(fcoe); - rtnl_unlock(); - /* Release the self-reference taken during fcoe_interface_create() */ /* tear-down the FCoE controller */ fcoe_ctlr_destroy(fip); @@ -2140,6 +2135,11 @@ static void fcoe_destroy_work(struct work_struct *work) cdev = fcoe_ctlr_to_ctlr_dev(ctlr); fcoe_if_destroy(port->lport); + + rtnl_lock(); + if (!fcoe->removed) + fcoe_interface_remove(fcoe); + rtnl_unlock(); fcoe_interface_cleanup(fcoe); mutex_unlock(&fcoe_config_mutex); @@ -2254,6 +2254,8 @@ static int _fcoe_create(struct net_device *netdev, enum fip_mode fip_mode, printk(KERN_ERR "fcoe: Failed to create interface (%s)\n", netdev->name); rc = -EIO; + if (!fcoe->removed) + fcoe_interface_remove(fcoe); rtnl_unlock(); fcoe_interface_cleanup(fcoe); mutex_unlock(&fcoe_config_mutex); |