device property: Return -ENXIO if there is no suitable FW interface
Return -ENXIO if device property array access functions don't find
a suitable firmware interface.
This lets drivers decide if they should use available platform data
instead.
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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