The bio in the tio embedded into the clone_info structure is never initialized. This is harmless as bio_init only zeroes the structure and assigns the vectors, but add the initialization to prepare for refactoring the bio cloning logic. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- drivers/md/dm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index ee2d92ec7c9fc..57f44d3a4d747 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -552,6 +552,7 @@ static struct bio *alloc_tio(struct clone_info *ci, struct dm_target *ti, if (!ci->io->tio.io) { /* the dm_target_io embedded in ci->io is available */ tio = &ci->io->tio; + bio_init(&tio->clone, NULL, NULL, 0, 0); } else { struct bio *clone = bio_alloc_bioset(NULL, 0, 0, gfp_mask, &ci->io->md->bs); -- 2.30.2