1 files changed, 4 insertions, 2 deletions

diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 7b4201294187..6984342da13d 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -1792,8 +1792,10 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
                 if (vma->vm_flags & VM_PFNMAP) {
                         gpa_t gpa = mem->guest_phys_addr +
                                     (vm_start - mem->userspace_addr);
-                        phys_addr_t pa = (vma->vm_pgoff << PAGE_SHIFT) +
-                                         vm_start - vma->vm_start;
+                        phys_addr_t pa;
+
+                        pa = (phys_addr_t)vma->vm_pgoff << PAGE_SHIFT;
+                        pa += vm_start - vma->vm_start;
 
                         /* IO region dirty page logging not allowed */
                         if (memslot->flags & KVM_MEM_LOG_DIRTY_PAGES)