diff --git a/mm/mlock.c b/mm/mlock.c
index 4235a1518fc9..67ae9b18b923 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -457,7 +457,7 @@ static int mlock_fixup(struct vma_iterator *vmi, struct vm_area_struct *vma,
 {
 	const vma_flags_t old_vma_flags = vma->flags;
 	struct mm_struct *mm = vma->vm_mm;
-	int nr_pages;
+	long nr_pages;
 	int ret = 0;
 
 	if (vma_flags_same_pair(&old_vma_flags, new_vma_flags) ||