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of: Warn if of_graph_parse_endpoint is called with the root node

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If of_graph_parse_endpoint is given a parentless node instead of an
endpoint node, it is clearly a bug.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
This commit is contained in:
Philipp Zabel 2014-03-04 12:31:24 +01:00
parent f2a575f676
commit d484700a36
1 changed files with 3 additions and 0 deletions
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3
drivers/of/base.c
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@ -1996,6 +1996,9 @@ int of_graph_parse_endpoint(const struct device_node *node,
{
struct device_node *port_node = of_get_parent(node);
WARN_ONCE(!port_node, "%s(): endpoint %s has no parent node\n",
__func__, node->full_name);
memset(endpoint, 0, sizeof(*endpoint));
endpoint->local_node = node;