[PATCH] filemap: Return the error in do_read_cache_page()

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From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>

If the call to do_read_cache_folio() returns an error, then we should
pass that back to the caller of do_read_cache_page().

Fixes: 539a3322f208 ("filemap: Add read_cache_folio and read_mapping_folio")
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
---
 mm/filemap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/filemap.c b/mm/filemap.c
index 30de18c4fd28..8f3b3604f73b 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3812,7 +3812,7 @@ static struct page *do_read_cache_page(struct address_space *mapping,
 
 	folio = do_read_cache_folio(mapping, index, filler, file, gfp);
 	if (IS_ERR(folio))
-		return &folio->page;
+		return ERR_CAST(folio);
 	return folio_file_page(folio, index);
 }
 
-- 
2.45.1





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