add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/ocfs2/dlmglue.c
..
..
@@ -3396,10 +3396,12 @@
3396
3396
 	ocfs2_lock_res_free(&osb->osb_nfs_sync_lockres);
3397
3397
 	ocfs2_lock_res_free(&osb->osb_orphan_scan.os_lockres);
3398
3398
 
3399
-	ocfs2_cluster_disconnect(osb->cconn, hangup_pending);
3400
-	osb->cconn = NULL;
3399
+	if (osb->cconn) {
3400
+		ocfs2_cluster_disconnect(osb->cconn, hangup_pending);
3401
+		osb->cconn = NULL;
3401
3402
 
3402
-	ocfs2_dlm_shutdown_debug(osb);
3403
+		ocfs2_dlm_shutdown_debug(osb);
3404
+	}
3403
3405
 }
3404
3406
 
3405
3407
 static int ocfs2_drop_lock(struct ocfs2_super *osb,