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cpuidle: haltpoll: Call cpuidle_poll_state_init() later

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Call cpuidle_poll_state_init() only if it is needed to avoid doing
useless work.

Signed-off-by: Li RongQing <lirongqing@baidu.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Li RongQing 2022-03-04 15:53:28 +08:00 committed by Rafael J. Wysocki
parent 3a9cf77b60
commit 659b66e98b
1 changed files with 2 additions and 2 deletions
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4
drivers/cpuidle/cpuidle-haltpoll.c
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@ -108,11 +108,11 @@ static int __init haltpoll_init(void)
if (boot_option_idle_override != IDLE_NO_OVERRIDE)
return -ENODEV;
cpuidle_poll_state_init(drv);
if (!kvm_para_available() || !haltpoll_want())
return -ENODEV;
cpuidle_poll_state_init(drv);
ret = cpuidle_register_driver(drv);
if (ret < 0)
return ret;