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When a kernel is built to support multiple hardware types it's possible that CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is set but the hardware the kernel is run on doesn't support cpuidle and therefore doesn't load a driver for it. In this case, when the system is shut down, cpuidle_coupled_cpu_notify() gets called with cpuidle_devices set to NULL. There are quite possibly other circumstances where this situation can also occur and we should check for it. Signed-off-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> |
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.. | ||
governors | ||
coupled.c | ||
cpuidle.c | ||
cpuidle.h | ||
driver.c | ||
governor.c | ||
Kconfig | ||
Makefile | ||
sysfs.c |