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authorVasu Dev <vasu.dev@intel.com>2012-04-20 12:16:38 -0700
committerJames Bottomley <JBottomley@Parallels.com>2012-05-10 08:59:25 +0100
commit3cab4468fd0a4b3c9f22a380e4318c17b6c202d6 (patch)
tree554adf8c808629f1e01f0c08a0b70759b8e6adb2 /drivers/scsi/fcoe
parent061446a159c5a0ec7047f9979866ffa7e0587b25 (diff)
downloadop-kernel-dev-3cab4468fd0a4b3c9f22a380e4318c17b6c202d6.zip
op-kernel-dev-3cab4468fd0a4b3c9f22a380e4318c17b6c202d6.tar.gz
[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>
Diffstat (limited to 'drivers/scsi/fcoe')
-rw-r--r--drivers/scsi/fcoe/fcoe.c9
1 files changed, 7 insertions, 2 deletions
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 @@ 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);
}
/**
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