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Commit b34b8aa3 authored by Taniya Das's avatar Taniya Das
Browse files

cpufreq: qcom-cpufreq-hw: Initialize the spinlock before usage 



Initialization of the spinlock is required to avoid the below trace.

cpufreq: driver qcom-cpufreq-hw up and running
BUG: spinlock bad magic on CPU#7, swapper/0/1
lock: qcom_cpufreq_counter+0x128/0x140, .magic: 00000000,
.owner: <none>/-1, .owner_cpu: 0.

Change-Id: I079ebd7c0009c3b634d2d5d41ac880da06cf8f6d
Signed-off-by: default avatarTaniya Das <tdas@codeaurora.org>
parent 84606f73

drivers/cpufreq/qcom-cpufreq-hw.c

+4 −1
Original line number Diff line number Diff line
@@ -438,10 +438,10 @@ static int qcom_resources_init(struct platform_device *pdev) 


static int qcom_cpufreq_hw_driver_probe(struct platform_device *pdev)

{

	int rc;

	struct cpu_cycle_counter_cb cycle_counter_cb = {

		.get_cpu_cycle_counter = qcom_cpufreq_get_cpu_cycle_counter,

	};

	int rc, cpu;



	/* Get the bases of cpufreq for domains */

	rc = qcom_resources_init(pdev);
@@ -456,6 +456,9 @@ static int qcom_cpufreq_hw_driver_probe(struct platform_device *pdev) 
		return rc;

	}



	for_each_possible_cpu(cpu)

		spin_lock_init(&qcom_cpufreq_counter[cpu].lock);



	rc = register_cpu_cycle_counter_cb(&cycle_counter_cb);

	if (rc) {

		dev_err(&pdev->dev, "cycle counter cb failed to register\n");