cpufreq: sfi: use kmemdup rather than duplicating its implementation

---
 drivers/cpufreq/sfi-cpufreq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
 
diff --git a/drivers/cpufreq/sfi-cpufreq.c b/drivers/cpufreq/sfi-cpufreq.c
index ffa3389..992ce6f 100644
--- a/drivers/cpufreq/sfi-cpufreq.c
+++ b/drivers/cpufreq/sfi-cpufreq.c
@@ -45,12 +45,10 @@ static int sfi_parse_freq(struct sfi_table_header *table)
 	pentry = (struct sfi_freq_table_entry *)sb->pentry;
 	totallen = num_freq_table_entries * sizeof(*pentry);
 
-	sfi_cpufreq_array = kzalloc(totallen, GFP_KERNEL);
+	sfi_cpufreq_array = kmemdup(pentry, totallen, GFP_KERNEL);
 	if (!sfi_cpufreq_array)
 		return -ENOMEM;
 
-	memcpy(sfi_cpufreq_array, pentry, totallen);
-
 	return 0;
 }