[PATCH 6/7] of: add consistency check to of_node_release()
From: Frank Rowand
Date: Mon Feb 13 2023 - 13:58:10 EST
Add an additional consistency check to of_node_release(), which is
called when the reference count of a devicetree node is decremented
to zero. The node's children should have been deleted before the
node is deleted so check that no children exist.
Signed-off-by: Frank Rowand <frowand.list@xxxxxxxxx>
---
drivers/of/dynamic.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
index dbcbc41f3465..657a65006056 100644
--- a/drivers/of/dynamic.c
+++ b/drivers/of/dynamic.c
@@ -377,6 +377,10 @@ void of_node_release(struct kobject *kobj)
__func__, node);
}
+ if (node->child)
+ pr_err("ERROR: %s() unexpected children for %pOF/%s\n",
+ __func__, node->parent, node->full_name);
+
property_list_free(node->properties);
property_list_free(node->deadprops);
fwnode_links_purge(of_fwnode_handle(node));
--
Frank Rowand <frowand.list@xxxxxxxxx>