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KVM: nVMX: kmap() can't fail

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commit 42cf014d38 upstream.

kmap() can't fail, therefore it will always return a valid pointer. Let's
just get rid of the unnecessary checks.

Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[jwang: port to 4.4]
Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Hildenbrand
2018-02-25 11:03:54 +01:00
committed by Greg Kroah-Hartman
parent fd94ae98d2
commit e7a3bc31dc
1 changed files with 0 additions and 9 deletions
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arch/x86/kvm/vmx.c
-9
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@@ -4532,10 +4532,6 @@ static int vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
return 0;
vapic_page = kmap(vmx->nested.virtual_apic_page);
if (!vapic_page) {
WARN_ON(1);
return -ENOMEM;
}
__kvm_apic_update_irr(vmx->nested.pi_desc->pir, vapic_page);
kunmap(vmx->nested.virtual_apic_page);
@@ -9238,11 +9234,6 @@ static inline bool nested_vmx_merge_msr_bitmap(struct kvm_vcpu *vcpu,
return false;
}
msr_bitmap = (unsigned long *)kmap(page);
if (!msr_bitmap) {
nested_release_page_clean(page);
WARN_ON(1);
return false;
}
if (nested_cpu_has_virt_x2apic_mode(vmcs12)) {
if (nested_cpu_has_apic_reg_virt(vmcs12))