kmalloc + memset -> kzalloc conversion

@@ -595,12 +595,11 @@ static int cpufreq_add_dev (struct sys_d
 		goto module_out;
 	}
 
-	policy = kmalloc(sizeof(struct cpufreq_policy), GFP_KERNEL);
+	policy = kzalloc(sizeof(struct cpufreq_policy), GFP_KERNEL);
 	if (!policy) {
 		ret = -ENOMEM;
 		goto nomem_out;
 	}
-	memset(policy, 0, sizeof(struct cpufreq_policy));
 
 	policy->cpu = cpu;
 	policy->cpus = cpumask_of_cpu(cpu);

@@ -192,9 +192,8 @@ cpufreq_stats_create_table (struct cpufr
 	unsigned int cpu = policy->cpu;
 	if (cpufreq_stats_table[cpu])
 		return -EBUSY;
-	if ((stat = kmalloc(sizeof(struct cpufreq_stats), GFP_KERNEL)) == NULL)
+	if ((stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL)) == NULL)
 		return -ENOMEM;
-	memset(stat, 0, sizeof (struct cpufreq_stats));
 
 	data = cpufreq_cpu_get(cpu);
 	if ((ret = sysfs_create_group(&data->kobj, &stats_attr_group)))

@@ -216,12 +215,11 @@ cpufreq_stats_create_table (struct cpufr
 	alloc_size += count * count * sizeof(int);
 #endif
 	stat->max_state = count;
-	stat->time_in_state = kmalloc(alloc_size, GFP_KERNEL);
+	stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL);
 	if (!stat->time_in_state) {
 		ret = -ENOMEM;
 		goto error_out;
 	}
-	memset(stat->time_in_state, 0, alloc_size);
 	stat->freq_table = (unsigned int *)(stat->time_in_state + count);
 
 #ifdef CONFIG_CPU_FREQ_STAT_DETAILS