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| author | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2016-12-15 16:00:57 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-12-21 02:52:51 +0100 |
| commit | 1358e038fac2628730842c817c7c156647166461 (patch) | |
| tree | 7ed12eaa0176365ca467e6364698b4c0b31d8508 /kernel/cpu.c | |
| parent | Merge schedutil governor updates for v4.10. (diff) | |
| download | linux-1358e038fac2628730842c817c7c156647166461.tar.xz linux-1358e038fac2628730842c817c7c156647166461.zip | |
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 <boris.ostrovsky@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | kernel/cpu.c | 6 |
1 files changed, 5 insertions, 1 deletions
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, |