On 02/27/2014 06:35 PM, Philipp Zabel wrote:
If of_graph_get_next_endpoint is given a parentless node instead of an
endpoint node, it is clearly a bug.
Signed-off-by: Philipp Zabel<p.zabel@xxxxxxxxxxxxxx>
---
drivers/of/base.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index b2f223f..6e650cf 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2028,8 +2028,8 @@ struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
of_node_put(node);
} else {
port = of_get_parent(prev);
- if (!port)
- /* Hm, has someone given us the root node ?... */
+ if (WARN_ONCE(!port, "%s(): endpoint has no parent node\n",
+ __func__))
Perhaps we can add more information to this error log, e.g.
if (WARN_ONCE(!port, "%s(): endpoint %s has no parent node\n",
__func__, prev->full_name))
?
return NULL;
/* Avoid dropping prev node refcount to 0. */
--
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