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Commit f8594220 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

x86: PM: Make APM idle driver initialize polling state 



Update the APM driver overlooked by commit 1b39e3f8 (cpuidle: Make
drivers initialize polling state) to initialize the polling state like
the other cpuidle drivers modified by that commit to prevent cpuidle
from crashing.

Fixes: 1b39e3f8 (cpuidle: Make drivers initialize polling state)
Reported-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Cc: 4.14+ <stable@vger.kernel.org> # 4.14+
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 7f3fdd40

arch/x86/kernel/apm_32.c

+1 −0
Original line number Diff line number Diff line
@@ -2389,6 +2389,7 @@ static int __init apm_init(void) 
	if (HZ != 100)

		idle_period = (idle_period * HZ) / 100;

	if (idle_threshold < 100) {

		cpuidle_poll_state_init(&apm_idle_driver);

		if (!cpuidle_register_driver(&apm_idle_driver))

			if (cpuidle_register_device(&apm_cpuidle_device))

				cpuidle_unregister_driver(&apm_idle_driver);