In these two places, it seems that errno can be 0.  This would assign
BLK_STS_OK (0) to bio->bi_status, which is not allowed.  Fix that by
using bio_set_status() instead.

Created with Coccinelle using the following semantic patch.

(Coccinelle occasionally likes to add unnecessary curly braces
in if statements; those were removed by hand.)

@@
struct bio *bio;
expression errno;
@@
- bio->bi_status = errno_to_blk_status(errno);
+ bio_set_status(bio, errno_to_blk_status(errno));

@@
struct bio bio;
expression errno;
@@
- bio.bi_status = errno_to_blk_status(errno);
+ bio_set_status(&bio, errno_to_blk_status(errno));

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
---
 drivers/md/dm-pcache/dm_pcache.c | 2 +-
 drivers/md/dm-vdo/data-vio.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/md/dm-pcache/dm_pcache.c b/drivers/md/dm-pcache/dm_pcache.c
index e5f5936fa6f0..086ae9b06bfb 100644
--- a/drivers/md/dm-pcache/dm_pcache.c
+++ b/drivers/md/dm-pcache/dm_pcache.c
@@ -74,7 +74,7 @@ static void end_req(struct kref *ref)
 		pcache_req_get(pcache_req);
 		defer_req(pcache_req);
 	} else {
-		bio->bi_status = errno_to_blk_status(ret);
+		bio_set_status(bio, errno_to_blk_status(ret));
 		bio_endio(bio);
 
 		if (atomic_dec_and_test(&pcache->inflight_reqs))
diff --git a/drivers/md/dm-vdo/data-vio.c b/drivers/md/dm-vdo/data-vio.c
index 262e11581f2d..11becc4138c4 100644
--- a/drivers/md/dm-vdo/data-vio.c
+++ b/drivers/md/dm-vdo/data-vio.c
@@ -287,7 +287,7 @@ static void acknowledge_data_vio(struct data_vio *data_vio)
 	if (data_vio->is_partial)
 		vdo_count_bios(&vdo->stats.bios_acknowledged_partial, bio);
 
-	bio->bi_status = errno_to_blk_status(error);
+	bio_set_status(bio, errno_to_blk_status(error));
 	bio_endio(bio);
 }
 
-- 
2.52.0