This was changed from find_lock_page() which returns NULL to
filemap_lock_folio() which returns error pointers. Update the
error checking to match.
Fixes: 8f5654d233e3 ("mm/khugepaged: convert collapse_pte_mapped_thp() to use folios")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
mm/khugepaged.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index a25f5b7c3e7e..d977eb50704a 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1508,7 +1508,7 @@ int collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr,
folio = filemap_lock_folio(vma->vm_file->f_mapping,
linear_page_index(vma, haddr));
- if (!folio)
+ if (IS_ERR(folio))
return SCAN_PAGE_NULL;
if (folio_order(folio) != HPAGE_PMD_ORDER) {
--
2.42.0
