Commit 818489e5 authored Jun 18, 2018 by Sudeep Holla Committed by Rafael J. Wysocki Jun 25, 2018

ARM: cpuidle: silence error on driver registration failure

It's perfectly fine to have multiple cpuidle driver compiled in the
build configuration. However, it's not good to throw error on driver
registration failure if some other driver is already initialised and
assigned. In such cases, __cpuidle_register_driver returns -EBUSY and
we can check for such error before throwing the error.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 7daf201d

drivers/cpuidle/cpuidle-arm.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -105,6 +105,7 @@ static int __init arm_idle_init_cpu(int cpu)

		ret = cpuidle_register_driver(drv);
		if (ret) {
		if (ret != -EBUSY)
		pr_err("Failed to register cpuidle driver\n");
		goto out_kfree_drv;
		}

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