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d28054020f
Currently pm_genpd_poweroff() discards error codes returned by the PM domain's .power_off() callback, because it's safer to always regard the domain as inaccessible to drivers after a failing .power_off(). Still, there are situations in which the low-level code may want to indicate that it doesn't want to power off the domain, so allow it to do that by returning -EBUSY from .power_off(). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Magnus Damm <damm@opensource.se>