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path: root/arch/sparc64/kernel/us3_cpufreq.c
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Diffstat (limited to 'arch/sparc64/kernel/us3_cpufreq.c')
-rw-r--r--arch/sparc64/kernel/us3_cpufreq.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/sparc64/kernel/us3_cpufreq.c b/arch/sparc64/kernel/us3_cpufreq.c
index 6d1f9a3c464..47e3acafb5b 100644
--- a/arch/sparc64/kernel/us3_cpufreq.c
+++ b/arch/sparc64/kernel/us3_cpufreq.c
@@ -203,6 +203,9 @@ static int __init us3_freq_init(void)
unsigned long manuf, impl, ver;
int ret;
+ if (tlb_type != cheetah && tlb_type != cheetah_plus)
+ return -ENODEV;
+
__asm__("rdpr %%ver, %0" : "=r" (ver));
manuf = ((ver >> 48) & 0xffff);
impl = ((ver >> 32) & 0xffff);
@@ -215,20 +218,16 @@ static int __init us3_freq_init(void)
struct cpufreq_driver *driver;
ret = -ENOMEM;
- driver = kmalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
+ driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
if (!driver)
goto err_out;
- memset(driver, 0, sizeof(*driver));
- us3_freq_table = kmalloc(
+ us3_freq_table = kzalloc(
(NR_CPUS * sizeof(struct us3_freq_percpu_info)),
GFP_KERNEL);
if (!us3_freq_table)
goto err_out;
- memset(us3_freq_table, 0,
- (NR_CPUS * sizeof(struct us3_freq_percpu_info)));
-
driver->init = us3_freq_cpu_init;
driver->verify = us3_freq_verify;
driver->target = us3_freq_target;