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KVM: Unregister cpufreq notifier on unload 

Properly unregister cpufreq notifier on onload if it was registered
during init.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Jan Kiszka 2009-04-17 19:24:58 +02:00 committed by Avi Kivity
parent 7f1ea20896
commit 888d256e9c
1 changed files with 3 additions and 0 deletions
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3
arch/x86/kvm/x86.c
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@ -2775,6 +2775,9 @@ int kvm_arch_init(void *opaque)
void kvm_arch_exit(void)
{
if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
cpufreq_unregister_notifier(&kvmclock_cpufreq_notifier_block,
CPUFREQ_TRANSITION_NOTIFIER);
kvm_x86_ops = NULL;
kvm_mmu_module_exit();
}