diff --git a/fs/dax.c b/fs/dax.c
index 95981591977a04d08f300c0795fcd96a4211adc1..c2ebf10b70daf706fcf80a1ad2cab3468fe75170 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -636,8 +636,8 @@ static void dax_mapping_entry_mkclean(struct address_space *mapping,
 			pmd = pmd_mkclean(pmd);
 			set_pmd_at(vma->vm_mm, address, pmdp, pmd);
 unlock_pmd:
-			spin_unlock(ptl);
 #endif
+			spin_unlock(ptl);
 		} else {
 			if (pfn != pte_pfn(*ptep))
 				goto unlock_pte;