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Subject[PATCH 4.4 188/193] KVM: nVMX: kmap() cant fail
Date
4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Hildenbrand <david@redhat.com>

commit 42cf014d38d8822cce63703a467e00f65d000952 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>
---
arch/x86/kvm/vmx.c | 9 ---------
1 file changed, 9 deletions(-)

--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -4532,10 +4532,6 @@ static int vmx_complete_nested_posted_in
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_
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))

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