[PATCH 2/2] afs: fix the afs_dir_get_folio return value

[Christoph Hellwig <hch@lst.de>]

Keep returning NULL on failure instead of letting an ERR_PTR escape to
callers that don't expect it.

Fixes: 66dabbb65d67 ("mm: return an ERR_PTR from __filemap_get_folio")
Reported-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/afs/dir_edit.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/afs/dir_edit.c b/fs/afs/dir_edit.c
index f0eddccbdd9541..e2fa577b66fe0a 100644
--- a/fs/afs/dir_edit.c
+++ b/fs/afs/dir_edit.c
@@ -115,11 +115,12 @@ static struct folio *afs_dir_get_folio(struct afs_vnode *vnode, pgoff_t index)
 	folio = __filemap_get_folio(mapping, index,
 				    FGP_LOCK | FGP_ACCESSED | FGP_CREAT,
 				    mapping->gfp_mask);
-	if (IS_ERR(folio))
+	if (IS_ERR(folio)) {
 		clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
-	else if (folio && !folio_test_private(folio))
+		return NULL;
+	}
+	if (!folio_test_private(folio))
 		folio_attach_private(folio, (void *)1);
-
 	return folio;
 }
 
-- 
2.39.2