KVM: x86: Use kcalloc to allocate the mce_banks array.

This patch updates the allocation of mce_banks with the array allocation
API (kcalloc) as a precedent for the later mci_ctl2_banks to implement
per-bank control of Corrected Machine Check Interrupt (CMCI).

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Jue Wang <juew@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220610171134.772566-6-juew@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6d6d6c6..3c6eb68 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -11447,7 +11447,7 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
                goto fail_free_lapic;
        vcpu->arch.pio_data = page_address(page);
 
-       vcpu->arch.mce_banks = kzalloc(KVM_MAX_MCE_BANKS * sizeof(u64) * 4,
+       vcpu->arch.mce_banks = kcalloc(KVM_MAX_MCE_BANKS * 4, sizeof(u64),
                                       GFP_KERNEL_ACCOUNT);
        if (!vcpu->arch.mce_banks)
                goto fail_free_pio_data;