diff options
| -rw-r--r-- | mm/memory.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/memory.c b/mm/memory.c index bb0d3ebcde1f..6c1bd65af03f 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1475,8 +1475,11 @@ static int insert_page_into_pte_locked(struct mm_struct *mm, pte_t *pte, static int insert_page_in_batch_locked(struct mm_struct *mm, pmd_t *pmd, unsigned long addr, struct page *page, pgprot_t prot) { - const int err = validate_page_before_insert(page); + int err; + if (!page_count(page)) + return -EINVAL; + err = validate_page_before_insert(page); return err ? err : insert_page_into_pte_locked( mm, pte_offset_map(pmd, addr), addr, page, prot); } |