[SCSI] qla4xxx: Clear DDB index map upon connection close failure

Issue:
qla4xxx Unable to clear DDB indices when logout fails due to
failure of connection close mbox command.

Root cause:
If login to session fail, iscsiadm make call to destroy_session.
qla4xxx driver does not free ddb index map before free_ddb()

Fix:
Clear DDB Index map before free_ddb in "destroy_session"
in case of connection close mailbox command failure with 4005h.

Signed-off-by: Nilesh Javali <nilesh.javali@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 9ae8ca3b69f9..f0dc6b321c8d 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -1002,6 +1002,10 @@ int qla4xxx_session_logout_ddb(struct scsi_qla_host *ha,
                                   "%s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT "
                                   "failed sts %04X %04X", __func__,
                                   mbox_sts[0], mbox_sts[1]));
+                if ((mbox_sts[0] == MBOX_STS_COMMAND_ERROR) &&
+                    (mbox_sts[1] == DDB_NOT_LOGGED_IN)) {
+                        set_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
+                }
         }
 
         return status;