[PATCH 02/10] hpfs: handle set_blocksize failures

hpfs uses buffer_heads, which don't handle block size > PAGE_SIZE well.
Without this, mounting will hit the

        BUG_ON(offset >= folio_size(folio));

in folio_set_bh on the first __bread_gfp call.

Signed-off-by: Christoph Hellwig <[email protected]>
---
 fs/hpfs/super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index c16d5d4caead..8fbdbf080627 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -523,7 +523,8 @@ static int hpfs_fill_super(struct super_block *s, struct fs_context *fc)
 	hpfs_lock(s);
 
 	/*sbi->sb_mounting = 1;*/
-	sb_set_blocksize(s, 512);
+	if (!sb_set_blocksize(s, 512))
+		goto bail0;
 	sbi->sb_fs_size = -1;
 	if (!(bootblock = hpfs_map_sector(s, 0, &bh0, 0))) goto bail1;
 	if (!(superblock = hpfs_map_sector(s, 16, &bh1, 1))) goto bail2;
-- 
2.53.0