From 1358e038fac2628730842c817c7c156647166461 Mon Sep 17 00:00:00 2001 From: Boris Ostrovsky Date: Thu, 15 Dec 2016 10:00:57 -0500 Subject: CPU/hotplug: Clarify description of __cpuhp_setup_state() return value When ivoked with CPUHP_AP_ONLINE_DYN state __cpuhp_setup_state() is expected to return positive value which is the hotplug state that the routine assigns. Signed-off-by: Boris Ostrovsky Signed-off-by: Rafael J. Wysocki --- kernel/cpu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/kernel/cpu.c b/kernel/cpu.c index 29de1a9352c0..1fca8b716ec1 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -1586,7 +1586,11 @@ EXPORT_SYMBOL_GPL(__cpuhp_state_add_instance); * @startup: startup callback function * @teardown: teardown callback function * - * Returns 0 if successful, otherwise a proper error code + * Returns: + * On success: + * Positive state number if @state is CPUHP_AP_ONLINE_DYN + * 0 for all other states + * On failure: proper (negative) error code */ int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke, -- cgit v1.2.3