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Subject[PATCH 1/2] software node: Fix node registration
Date
Software node can not be registered before its parent.

Fixes: 80488a6b1d3c ("software node: Add support for static node descriptors")
Cc: stable@vger.kernel.org
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
drivers/base/swnode.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index 37179a8b1ceba..74db8c971db74 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -938,6 +938,9 @@ int software_node_register(const struct software_node *node)
if (software_node_to_swnode(node))
return -EEXIST;

+ if (node->parent && !parent)
+ return -EINVAL;
+
return PTR_ERR_OR_ZERO(swnode_register(node, parent, 0));
}
EXPORT_SYMBOL_GPL(software_node_register);
--
2.30.1
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