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cpufreq: powernv: add of_node_put()

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The of_find_node_by_path() returns a node pointer with refcount
incremented,but there is the lack of use of the of_node_put() when
done.Add the missing of_node_put() to release the refcount.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Yangtao Li 2018-11-20 11:05:30 -05:00 committed by Rafael J. Wysocki
parent 60935c17e2
commit 3be466d681
1 changed files with 11 additions and 6 deletions
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17
drivers/cpufreq/powernv-cpufreq.c
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@ -253,18 +253,18 @@ static int init_powernv_pstates(void)
if (of_property_read_u32(power_mgt, "ibm,pstate-min", &pstate_min)) {
pr_warn("ibm,pstate-min node not found\n");
return -ENODEV;
goto out;
}
if (of_property_read_u32(power_mgt, "ibm,pstate-max", &pstate_max)) {
pr_warn("ibm,pstate-max node not found\n");
return -ENODEV;
goto out;
}
if (of_property_read_u32(power_mgt, "ibm,pstate-nominal",
&pstate_nominal)) {
pr_warn("ibm,pstate-nominal not found\n");
return -ENODEV;
goto out;
}
if (of_property_read_u32(power_mgt, "ibm,pstate-ultra-turbo",
@ -293,14 +293,14 @@ next:
pstate_ids = of_get_property(power_mgt, "ibm,pstate-ids", &len_ids);
if (!pstate_ids) {
pr_warn("ibm,pstate-ids not found\n");
return -ENODEV;
goto out;
}
pstate_freqs = of_get_property(power_mgt, "ibm,pstate-frequencies-mhz",
&len_freqs);
if (!pstate_freqs) {
pr_warn("ibm,pstate-frequencies-mhz not found\n");
return -ENODEV;
goto out;
}
if (len_ids != len_freqs) {
@ -311,7 +311,7 @@ next:
nr_pstates = min(len_ids, len_freqs) / sizeof(u32);
if (!nr_pstates) {
pr_warn("No PStates found\n");
return -ENODEV;
goto out;
}
powernv_pstate_info.nr_pstates = nr_pstates;
@ -352,7 +352,12 @@ next:
/* End of list marker entry */
powernv_freqs[i].frequency = CPUFREQ_TABLE_END;
of_node_put(power_mgt);
return 0;
out:
of_node_put(power_mgt);
return -ENODEV;
}
/* Returns the CPU frequency corresponding to the pstate_id. */