diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index cab26f3..2d90577 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -1360,7 +1360,7 @@
 
 static void audit_mappings(struct kvm_vcpu *vcpu)
 {
-	int i;
+	unsigned i;
 
 	if (vcpu->mmu.root_level == 4)
 		audit_mappings_page(vcpu, vcpu->mmu.root_hpa, 0, 4);