Re: [PATCH] cpufreq / intel_pstate: use vzalloc() instead of vmalloc()/memset(0)

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On 05/13/2013 01:03 AM, Wei Yongjun wrote:
From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

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

Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

Acked-by: Dirk Brandewie <dirk.j.brandewie@xxxxxxxxx>

---
  drivers/cpufreq/intel_pstate.c | 3 +--
  1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index cc3a8e6..f59aecb 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -788,10 +788,9 @@ 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)

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