scsi: qla2xxx: Fix unintended Logout

During normal IO, FW can return IO with 'port unavailble' status.  Driver
would send a LOGO to remote port for session resync.  On an off chance, a
PLOGI could arrive before sending the LOGO.  This patch will skip sendiing
LOGO if a PLOGI just came in.
Signed-off-by: NQuinn Tran <quinn.tran@cavium.com>
Signed-off-by: NHimanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_target.c

@@ -986,8 +986,9 @@ void qlt_free_session_done(struct work_struct *work)
 
 			logo.id = sess->d_id;
 			logo.cmd_count = 0;
-			sess->send_els_logo = 0;
+			if (!own)
 				qlt_send_first_logo(vha, &logo);
+			sess->send_els_logo = 0;
 		}
 
 		if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {