Commit 75c07581 authored Oct 25, 2013 by Rafael J. Wysocki

acpi-cpufreq: Fail initialization if driver cannot be registered

Make acpi_cpufreq_init() return error codes when the driver cannot be
registered so that the module doesn't stay useless in memory and so
that acpi_cpufreq_exit() doesn't attempt to unregister things that
have never been registered when the module is unloaded.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

parent d3c345db

drivers/cpufreq/acpi-cpufreq.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -986,12 +986,12 @@ static int __init acpi_cpufreq_init(void)
		{
		int ret;

		if (acpi_disabled)
		return -ENODEV;

		/* don't keep reloading if cpufreq_driver exists */
		if (cpufreq_get_current_driver())
		return 0;

		if (acpi_disabled)
		return 0;
		return -EEXIST;

		pr_debug("acpi_cpufreq_init\n");