of_get_next_child() is supposed to return the next sibling of 'prev' and
the function does exactly that. It expects that 'node' is always the
same parent node. of_graph_get_next_endpoint() breaks this expectation,
it walks further down the tree and then calls of_get_next_child() with
'node' being some subnode of the original node. Fix this by retrieving
'node' always from 'prev' and use 'node' only on initial entry when
'prev' is NULL.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/of/base.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 62d84786ae..6fd69e7d7d 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2054,6 +2054,9 @@ EXPORT_SYMBOL(of_get_next_available_child);
struct device_node *of_get_next_child(const struct device_node *node,
struct device_node *prev)
{
+ if (prev)
+ node = prev->parent;
+
prev = list_prepare_entry(prev, &node->children, parent_list);
list_for_each_entry_continue(prev, &node->children, parent_list)
return prev;
--
2.39.5
