[PATCH] mm/hugetlb: fix hugetlbfs_pagecache_present()

[Dan Carpenter <dan.carpenter@linaro.org>]

The filemap_get_folio() function doesn't returns NULL, it returns error
pointers.  So the "return folio != NULL;" statement means
hugetlbfs_pagecache_present() always returns true.

Fixes: 267d6792f43b ("hugetlb: revert use of page_cache_next_miss()")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
 mm/hugetlb.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index cb9077b96b43..bce28cca73a1 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5731,9 +5731,10 @@ static bool hugetlbfs_pagecache_present(struct hstate *h,
 	struct folio *folio;
 
 	folio = filemap_get_folio(mapping, idx);
-	if (!IS_ERR(folio))
-		folio_put(folio);
-	return folio != NULL;
+	if (IS_ERR(folio))
+		return false;
+	folio_put(folio);
+	return true;
 }
 
 int hugetlb_add_to_page_cache(struct folio *folio, struct address_space *mapping,
-- 
2.39.2