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authorChristoph Hellwig <hch@lst.de>2023-05-03 18:45:26 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-05-06 20:10:08 +0300
commit58f5f6698a72a8af5d7bfc5f49b6df60f378f167 (patch)
treea8d30b3f466ef3bef5786372f566b3de784b9d2b /fs/afs
parent28a65b49eb53e172d23567005465019658bfdb4d (diff)
downloadlinux-58f5f6698a72a8af5d7bfc5f49b6df60f378f167.tar.xz
afs: fix the afs_dir_get_folio return value
Keep returning NULL on failure instead of letting an ERR_PTR escape to callers that don't expect it. Link: https://lkml.kernel.org/r/20230503154526.1223095-2-hch@lst.de Fixes: 66dabbb65d67 ("mm: return an ERR_PTR from __filemap_get_folio") Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Jan Kara <jack@suse.cz> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: David Howells <dhowells@redhat.com> Tested-by: David Howells <dhowells@redhat.com> Cc: Marc Dionne <marc.dionne@auristor.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/afs')
-rw-r--r--fs/afs/dir_edit.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/afs/dir_edit.c b/fs/afs/dir_edit.c
index f0eddccbdd95..e2fa577b66fe 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;
}