diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index d3abbf249fa048b23f41f37960f4b90d7ba4779f..3647334c2ef916ce9824153a359cb13cff3d9aba 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1458,10 +1458,10 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 }
 
 /*
- * Returns true if a given pmd maps a thp, false otherwise.
+ * Returns page table lock pointer if a given pmd maps a thp, NULL otherwise.
  *
- * Note that if it returns true, this routine returns without unlocking page
- * table lock. So callers must unlock it.
+ * Note that if it returns page table lock pointer, this routine returns without
+ * unlocking page table lock. So callers must unlock it.
  */
 spinlock_t *__pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma)
 {