Thread (32 messages) 32 messages, 5 authors, 2023-04-10
STALE1172d REVIEWED: 1 (0M)
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[PATCH v2 14/19] floppy: use __bio_add_page for adding single page to bio

From: Johannes Thumshirn <hidden>
Date: 2023-03-30 10:46:56
Also in: dm-devel, linux-block, linux-btrfs, linux-fsdevel, linux-mm
Subsystem: block layer, floppy driver, the rest · Maintainers: Jens Axboe, Denis Efremov, Linus Torvalds

The floppy code uses bio_add_page() to add a page to a newly created bio.
bio_add_page() can fail, but the return value is never checked.

Use __bio_add_page() as adding a single page to a newly created bio is
guaranteed to succeed.

This brings us a step closer to marking bio_add_page() as __must_check.

Signed-off-by: Johannes Thumshirn <redacted>
Reviewed-by: Damien Le Moal <redacted>
---
 drivers/block/floppy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 487840e3564d..6f46a30f7c36 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4147,7 +4147,7 @@ static int __floppy_read_block_0(struct block_device *bdev, int drive)
 	cbdata.drive = drive;
 
 	bio_init(&bio, bdev, &bio_vec, 1, REQ_OP_READ);
-	bio_add_page(&bio, page, block_size(bdev), 0);
+	__bio_add_page(&bio, page, block_size(bdev), 0);
 
 	bio.bi_iter.bi_sector = 0;
 	bio.bi_flags |= (1 << BIO_QUIET);
-- 
2.39.2
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