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Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/x86.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4c39ec5fc4fe..edbf00ec56b3 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4010,19 +4010,23 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
break;
BUILD_BUG_ON(sizeof(user_data_size) != sizeof(user_kvm_nested_state->size));
+ r = -EFAULT;
if (get_user(user_data_size, &user_kvm_nested_state->size))
- return -EFAULT;
+ break;
r = kvm_x86_ops->get_nested_state(vcpu, user_kvm_nested_state,
user_data_size);
if (r < 0)
- return r;
+ break;
if (r > user_data_size) {
if (put_user(r, &user_kvm_nested_state->size))
- return -EFAULT;
- return -E2BIG;
+ r = -EFAULT;
+ else
+ r = -E2BIG;
+ break;
}
+
r = 0;
break;
}
@@ -4034,19 +4038,21 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
if (!kvm_x86_ops->set_nested_state)
break;
+ r = -EFAULT;
if (copy_from_user(&kvm_state, user_kvm_nested_state, sizeof(kvm_state)))
- return -EFAULT;
+ break;
+ r = -EINVAL;
if (kvm_state.size < sizeof(kvm_state))
- return -EINVAL;
+ break;
if (kvm_state.flags &
~(KVM_STATE_NESTED_RUN_PENDING | KVM_STATE_NESTED_GUEST_MODE))
- return -EINVAL;
+ break;
/* nested_run_pending implies guest_mode. */
if (kvm_state.flags == KVM_STATE_NESTED_RUN_PENDING)
- return -EINVAL;
+ break;
r = kvm_x86_ops->set_nested_state(vcpu, user_kvm_nested_state, &kvm_state);
break;