cpufreq / intel_pstate: use vzalloc() instead of vmalloc()/memset(0)

Use vzalloc() instead of vmalloc() and memset(0).

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 0cc7d60..9c36ace 100644 (file)
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -709,10 +709,9 @@ static int __init intel_pstate_init(void)
 
        pr_info("Intel P-state driver initializing.\n");
 
-       all_cpu_data = vmalloc(sizeof(void *) * num_possible_cpus());
+       all_cpu_data = vzalloc(sizeof(void *) * num_possible_cpus());
        if (!all_cpu_data)
                return -ENOMEM;
-       memset(all_cpu_data, 0, sizeof(void *) * num_possible_cpus());
 
        rc = cpufreq_register_driver(&intel_pstate_driver);
        if (rc)