[PATCH v4 5/8] KVM: x86: Use kcalloc to allocate the mce_banks array.

[Jue Wang <juew@google.com>]

Corrected Machine Check Interrupt (CMCI) can be configured via the per
Machine Check bank registers: IA32_MCI_CTL2. To emulate IA32_MCI_CTL2
registers, it's necessary to introduce another array mci_ctl2_banks
in analogy to the mce_banks array under struct kvm_vcpu_arch.

This patch updates the allocation of mce_banks with the array allocation
API (kcalloc) as a precedent for the later mci_ctl2_banks.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Jue Wang <juew@google.com>
---
 arch/x86/kvm/x86.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4790f0d7d40b..0e839077ce52 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -11224,7 +11224,7 @@ 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;
-- 
2.36.1.124.g0e6072fb45-goog