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| author | David Arcari <darcari@redhat.com> | 2017-05-26 11:37:31 -0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-05-30 00:07:20 +0200 |
| commit | 6c77003677d5f1ce15f26d24360cb66c0bc07bb3 (patch) | |
| tree | 0ff7ebad5e998325d125d45ad838ca6f2389ee8e /drivers/cpufreq/cpufreq.c | |
| parent | be0408d74d9c95de1baf6c2563b6e6d1dfb17b88 (diff) | |
| download | linux-6c77003677d5f1ce15f26d24360cb66c0bc07bb3.tar.bz2 | |
cpufreq: cpufreq_register_driver() should return -ENODEV if init fails
For a driver that does not set the CPUFREQ_STICKY flag, if all of the
->init() calls fail, cpufreq_register_driver() should return an error.
This will prevent the driver from loading.
Fixes: ce1bcfe94db8 (cpufreq: check cpufreq_policy_list instead of scanning policies for all CPUs)
Cc: 4.0+ <stable@vger.kernel.org> # 4.0+
Signed-off-by: David Arcari <darcari@redhat.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 0e3f6496524d..26b643d57847 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2468,6 +2468,7 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data) if (!(cpufreq_driver->flags & CPUFREQ_STICKY) && list_empty(&cpufreq_policy_list)) { /* if all ->init() calls failed, unregister */ + ret = -ENODEV; pr_debug("%s: No CPU initialized for driver %s\n", __func__, driver_data->name); goto err_if_unreg; |