if kvm_vcpu_map returns non zero value, error path should be triggered regardless of the exact returned error value.
Suggested-by: Sean Christopherson seanjc@google.com Signed-off-by: Maxim Levitsky mlevitsk@redhat.com --- arch/x86/kvm/svm/svm.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 4cbb95796dcd63..b49e3f5c921c99 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -4472,8 +4472,7 @@ static int svm_enter_smm(struct kvm_vcpu *vcpu, union kvm_smram *smram) * that, see svm_prepare_switch_to_guest()) which must be * preserved. */ - if (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr), - &map_save) == -EINVAL) + if (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr), &map_save)) return 1;
BUILD_BUG_ON(offsetof(struct vmcb, save) != 0x400); @@ -4510,11 +4509,11 @@ static int svm_leave_smm(struct kvm_vcpu *vcpu, const union kvm_smram *smram) return 1;
vmcb12_gpa = GET_SMSTATE(u64, smstate, 0x7ee0); - if (kvm_vcpu_map(vcpu, gpa_to_gfn(vmcb12_gpa), &map) == -EINVAL) + if (kvm_vcpu_map(vcpu, gpa_to_gfn(vmcb12_gpa), &map)) return 1;
ret = 1; - if (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr), &map_save) == -EINVAL) + if (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr), &map_save)) goto unmap_map;
if (svm_allocate_nested(svm))