[SCSI] libfc: defer releasing master lport until complete fcoe interface cleanuped up
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>
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 09a6a26..481ba6f 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -472,6 +472,7 @@
/* 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 @@
/* 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);
}
/**