Update 'ret' with the return value of _kvm_device_access() prior to
asserting that ret is non-zero. In the current code base, the flaw is
benign as 'ret' is guaranteed to be -EBUSY from the previous run_vcpu(),
which also means that errno==EBUSY prior to _kvm_device_access(), thus
the "errno == EFAULT" part of the assert means that a false negative is
impossible (unless the kernel is being truly mean and spuriously setting
errno=EFAULT while returning success).
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS);
subtest_v3_redist_regions(&v);
- _kvm_device_access(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
- KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, dummy, true);
+ ret = _kvm_device_access(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+ KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, dummy, true);
TEST_ASSERT(ret && errno == EFAULT,
"register a third region allowing to cover the 4 vcpus");