software node: Allow node creation without properties

Software nodes are not forced to have device properties.
Adding check to property_entries_dup() to make it possible
to create software nodes that don't have any properties.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index 7fc5a18e02ad5de5cf7269c79b33a7cecb3bfc21..30077454eb68053f01cc04eb83b3baa5b0805ca0 100644 (file)
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -383,6 +383,9 @@ property_entries_dup(const struct property_entry *properties)
        int i, n = 0;
        int ret;
 
+       if (!properties)
+               return NULL;
+
        while (properties[n].name)
                n++;