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KVM: Fix pit memory leak if unable to allocate irq source id

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Reported-By: Daniel Marjamäki <danielm77@spray.se>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity 2008-11-11 13:09:36 +02:00
parent c60ff51eb2
commit e17d1dc086
1 changed files with 3 additions and 1 deletions
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4
arch/x86/kvm/i8254.c
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@ -548,8 +548,10 @@ struct kvm_pit *kvm_create_pit(struct kvm *kvm)
mutex_lock(&kvm->lock); mutex_lock(&kvm->lock);
pit->irq_source_id = kvm_request_irq_source_id(kvm); pit->irq_source_id = kvm_request_irq_source_id(kvm);
mutex_unlock(&kvm->lock); mutex_unlock(&kvm->lock);
if (pit->irq_source_id < 0) if (pit->irq_source_id < 0) {
kfree(pit);
return NULL; return NULL;
}
mutex_init(&pit->pit_state.lock); mutex_init(&pit->pit_state.lock);
mutex_lock(&pit->pit_state.lock); mutex_lock(&pit->pit_state.lock);