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cpufreq: Fix cpufreq_online() return value on errors

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Make cpufreq_online() return negative error codes on all errors that
cause the policy to be destroyed, as appropriate.

Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Wang ShaoBo 2020-11-26 09:12:39 +08:00 committed by Rafael J. Wysocki
parent ec06e586ab
commit b96f038432
1 changed files with 4 additions and 1 deletions
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5
drivers/cpufreq/cpufreq.c
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@ -1393,8 +1393,10 @@ static int cpufreq_online(unsigned int cpu)
policy->min_freq_req = kzalloc(2 * sizeof(*policy->min_freq_req),
GFP_KERNEL);
if (!policy->min_freq_req)
if (!policy->min_freq_req) {
ret = -ENOMEM;
goto out_destroy_policy;
}
ret = freq_qos_add_request(&policy->constraints,
policy->min_freq_req, FREQ_QOS_MIN,
@ -1431,6 +1433,7 @@ static int cpufreq_online(unsigned int cpu)
if (cpufreq_driver->get && has_target()) {
policy->cur = cpufreq_driver->get(policy->cpu);
if (!policy->cur) {
ret = -EIO;
pr_err("%s: ->get() failed\n", __func__);
goto out_destroy_policy;
}