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[SCSI] libfc: defer releasing master lport until complete fcoe interface cleanuped up

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The fcoe controller has back references, therefore defer
releasing master lport which gets freed along scsi_host_put
and then free it once fcoe interface is fully cleaned.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Vasu Dev 2012-04-20 12:16:38 -07:00 committed by James Bottomley
parent 061446a159
commit 3cab4468fd
1 changed files with 7 additions and 2 deletions
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9
drivers/scsi/fcoe/fcoe.c
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@ -472,6 +472,7 @@ static void fcoe_interface_cleanup(struct fcoe_interface *fcoe)
/* Release the self-reference taken during fcoe_interface_create() */
/* tear-down the FCoE controller */
fcoe_ctlr_destroy(fip);
scsi_host_put(fcoe->ctlr.lp->host);
kfree(fcoe);
dev_put(netdev);
module_put(THIS_MODULE);
@ -976,8 +977,12 @@ static void fcoe_if_destroy(struct fc_lport *lport)
/* Free memory used by statistical counters */
fc_lport_free_stats(lport);
/* Release the Scsi_Host */
scsi_host_put(lport->host);
/*
* Release the Scsi_Host for vport but hold on to
* master lport until it fcoe interface fully cleaned-up.
*/
if (lport->vport)
scsi_host_put(lport->host);
}
/**