KVM: SVM: Fix potential memory leak in svm_cpu_init()
When kmalloc memory for sd->sev_vmcbs failed, we forget to free the page held by sd->save_area. Also get rid of the var r as '-ENOMEM' is actually the only possible outcome here. Reviewed-by: NLiran Alon <liran.alon@oracle.com> Reviewed-by: NVitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: NMiaohe Lin <linmiaohe@huawei.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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