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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-10-25 16:22:47 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-10-25 16:22:47 +0200 |
| commit | 75c0758137c7ac647927b4b12bb5cfca96a0e4e6 (patch) | |
| tree | 9f40f1e9668e37d853e2ce29c930c39927b03607 /drivers/cpufreq/acpi-cpufreq.c | |
| parent | d3c345dbc7c083414ef74eb22ff26ba2bd100759 (diff) | |
| download | talos-obmc-linux-75c0758137c7ac647927b4b12bb5cfca96a0e4e6.tar.gz talos-obmc-linux-75c0758137c7ac647927b4b12bb5cfca96a0e4e6.zip | |
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>
Diffstat (limited to 'drivers/cpufreq/acpi-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/acpi-cpufreq.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index d2c3253e015e..506fd23c7550 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -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"); |
