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Commit 3be466d6 authored by Yangtao Li's avatar Yangtao Li Committed by Rafael J. Wysocki
Browse files

cpufreq: powernv: add of_node_put() 



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: default avatarYangtao Li <tiny.windzz@gmail.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 60935c17

drivers/cpufreq/powernv-cpufreq.c

+11 −6
Original line number Diff line number Diff line
@@ -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 @@ static int init_powernv_pstates(void) 
	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 @@ static int init_powernv_pstates(void) 
	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 @@ static int init_powernv_pstates(void) 


	/* 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. */