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powernow-k8: Cleanup init function

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Make it hotplug-safe and cleanup formatting.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Borislav Petkov 2013-01-20 10:24:30 +00:00 committed by Rafael J. Wysocki
parent 4827ea6ec9
commit c0939e46a8
1 changed files with 14 additions and 11 deletions
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25
drivers/cpufreq/powernow-k8.c
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@ -1271,7 +1271,7 @@ static void __request_acpi_cpufreq(void)
static int __cpuinit powernowk8_init(void)
{
unsigned int i, supported_cpus = 0;
int rv;
int ret;
if (static_cpu_has(X86_FEATURE_HW_PSTATE)) {
__request_acpi_cpufreq();
@ -1281,24 +1281,27 @@ static int __cpuinit powernowk8_init(void)
if (!x86_match_cpu(powernow_k8_ids))
return -ENODEV;
get_online_cpus();
for_each_online_cpu(i) {
int rc;
smp_call_function_single(i, check_supported_cpu, &rc, 1);
if (rc == 0)
smp_call_function_single(i, check_supported_cpu, &ret, 1);
if (!ret)
supported_cpus++;
}
if (supported_cpus != num_online_cpus())
if (supported_cpus != num_online_cpus()) {
put_online_cpus();
return -ENODEV;
}
put_online_cpus();
rv = cpufreq_register_driver(&cpufreq_amd64_driver);
ret = cpufreq_register_driver(&cpufreq_amd64_driver);
if (ret)
return ret;
if (!rv)
pr_info(PFX "Found %d %s (%d cpu cores) (" VERSION ")\n",
num_online_nodes(), boot_cpu_data.x86_model_id,
supported_cpus);
pr_info(PFX "Found %d %s (%d cpu cores) (" VERSION ")\n",
num_online_nodes(), boot_cpu_data.x86_model_id, supported_cpus);
return rv;
return ret;
}
/* driver entry point for term */