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software node: Fix node registration

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commit 8891123f9cbb9c1ee531e5a87fa116f0af685c48 upstream.

Software node can not be registered before its parent.

Fixes: 80488a6b1d ("software node: Add support for static node descriptors")
Cc: 5.10+ <stable@vger.kernel.org> # 5.10+
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus 2021-03-01 17:30:11 +03:00 • committed by Greg Kroah-Hartman
commit 1cb73c8262
1 changed files with 3 additions and 0 deletions
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3
drivers/base/swnode.c
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@ -812,6 +812,9 @@ 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);